docs: add spdx tags to all .md files

I have no idea if this is going to cause rendering problems, and it is fairly
hard to check. So let's just merge this, and if it github markdown processor
doesn't like it, revert.

43 files changed, 43 insertions, 0 deletions

diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 5684911fd3..3b81d8f737 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -2,6 +2,7 @@
 title: systemd Repository Architecture
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Code Map
diff --git a/docs/AUTOMATIC_BOOT_ASSESSMENT.md b/docs/AUTOMATIC_BOOT_ASSESSMENT.md
index f6d63afcdf..daba9502ec 100644
--- a/docs/AUTOMATIC_BOOT_ASSESSMENT.md
+++ b/docs/AUTOMATIC_BOOT_ASSESSMENT.md
@@ -2,6 +2,7 @@
 title: Automatic Boot Assessment
 category: Booting
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Automatic Boot Assessment
diff --git a/docs/BLOCK_DEVICE_LOCKING.md b/docs/BLOCK_DEVICE_LOCKING.md
index 82df155f1e..428e4e3fbf 100644
--- a/docs/BLOCK_DEVICE_LOCKING.md
+++ b/docs/BLOCK_DEVICE_LOCKING.md
@@ -2,6 +2,7 @@
 title: Locking Block Device Access
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Locking Block Device Access
diff --git a/docs/BOOT_LOADER_INTERFACE.md b/docs/BOOT_LOADER_INTERFACE.md
index e9155117b9..0e0eab7a28 100644
--- a/docs/BOOT_LOADER_INTERFACE.md
+++ b/docs/BOOT_LOADER_INTERFACE.md
@@ -2,6 +2,7 @@
 title: Boot Loader Interface
 category: Booting
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # The Boot Loader Interface
diff --git a/docs/BOOT_LOADER_SPECIFICATION.md b/docs/BOOT_LOADER_SPECIFICATION.md
index 7b5b19700a..54fa5f04fd 100644
--- a/docs/BOOT_LOADER_SPECIFICATION.md
+++ b/docs/BOOT_LOADER_SPECIFICATION.md
@@ -2,6 +2,7 @@
 title: Boot Loader Specification
 category: Booting
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # The Boot Loader Specification
diff --git a/docs/CGROUP_DELEGATION.md b/docs/CGROUP_DELEGATION.md
index 773f254a1e..3a7e4c3847 100644
--- a/docs/CGROUP_DELEGATION.md
+++ b/docs/CGROUP_DELEGATION.md
@@ -2,6 +2,7 @@
 title: Control Group APIs and Delegation
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Control Group APIs and Delegation
diff --git a/docs/CODE_OF_CONDUCT.md b/docs/CODE_OF_CONDUCT.md
index b906bf5acb..8e5455d302 100644
--- a/docs/CODE_OF_CONDUCT.md
+++ b/docs/CODE_OF_CONDUCT.md
@@ -2,6 +2,7 @@
 title: systemd Community Conduct Guidelines
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # The systemd Community Conduct Guidelines
diff --git a/docs/CODE_QUALITY.md b/docs/CODE_QUALITY.md
index 0933a0e495..4b76a1055e 100644
--- a/docs/CODE_QUALITY.md
+++ b/docs/CODE_QUALITY.md
@@ -2,6 +2,7 @@
 title: Code Quality Tools
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Code Quality Tools
diff --git a/docs/CODING_STYLE.md b/docs/CODING_STYLE.md
index 54150e1ee7..b3c197250a 100644
--- a/docs/CODING_STYLE.md
+++ b/docs/CODING_STYLE.md
@@ -2,6 +2,7 @@
 title: Coding Style
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Coding Style
diff --git a/docs/CONTAINER_INTERFACE.md b/docs/CONTAINER_INTERFACE.md
index ff458bd770..54b94e2342 100644
--- a/docs/CONTAINER_INTERFACE.md
+++ b/docs/CONTAINER_INTERFACE.md
@@ -2,6 +2,7 @@
 title: Container Interface
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # The Container Interface
diff --git a/docs/CONTRIBUTING.md b/docs/CONTRIBUTING.md
index cab0074ca5..219b2ffded 100644
--- a/docs/CONTRIBUTING.md
+++ b/docs/CONTRIBUTING.md
@@ -2,6 +2,7 @@
 title: Contributing
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Contributing
diff --git a/docs/CONVERTING_TO_HOMED.md b/docs/CONVERTING_TO_HOMED.md
index 78b6c61631..1c77a46b7e 100644
--- a/docs/CONVERTING_TO_HOMED.md
+++ b/docs/CONVERTING_TO_HOMED.md
@@ -2,6 +2,7 @@
 title: Converting Existing Users to systemd-homed
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Converting Existing Users to systemd-homed managed Users
diff --git a/docs/COREDUMP_PACKAGE_METADATA.md b/docs/COREDUMP_PACKAGE_METADATA.md
index f27f835064..9936703c76 100644
--- a/docs/COREDUMP_PACKAGE_METADATA.md
+++ b/docs/COREDUMP_PACKAGE_METADATA.md
@@ -2,6 +2,7 @@
 title: Package Metadata for Core Files
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Package Metadata for Core Files
diff --git a/docs/DESKTOP_ENVIRONMENTS.md b/docs/DESKTOP_ENVIRONMENTS.md
index 9ae1aefb20..b5195da26c 100644
--- a/docs/DESKTOP_ENVIRONMENTS.md
+++ b/docs/DESKTOP_ENVIRONMENTS.md
@@ -2,6 +2,7 @@
 title: Desktop Environment Integration
 category: Concepts
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Desktop Environments
diff --git a/docs/DISCOVERABLE_PARTITIONS.md b/docs/DISCOVERABLE_PARTITIONS.md
index bd4cb24602..a09ee62737 100644
--- a/docs/DISCOVERABLE_PARTITIONS.md
+++ b/docs/DISCOVERABLE_PARTITIONS.md
@@ -2,6 +2,7 @@
 title: Discoverable Partitions Specification
 category: Concepts
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 # The Discoverable Partitions Specification
 
diff --git a/docs/DISTRO_PORTING.md b/docs/DISTRO_PORTING.md
index 2e4782f401..62d3f07572 100644
--- a/docs/DISTRO_PORTING.md
+++ b/docs/DISTRO_PORTING.md
@@ -2,6 +2,7 @@
 title: Porting systemd To New Distributions
 category: Concepts
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Porting systemd To New Distributions
diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md
index d2ab3baf68..7425b18f42 100644
--- a/docs/ENVIRONMENT.md
+++ b/docs/ENVIRONMENT.md
@@ -2,6 +2,7 @@
 title: Known Environment Variables
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Known Environment Variables
diff --git a/docs/GROUP_RECORD.md b/docs/GROUP_RECORD.md
index 26809c483a..44666930db 100644
--- a/docs/GROUP_RECORD.md
+++ b/docs/GROUP_RECORD.md
@@ -2,6 +2,7 @@
 title: JSON Group Records
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # JSON Group Records
diff --git a/docs/GVARIANT-SERIALIZATION.md b/docs/GVARIANT-SERIALIZATION.md
index 54e3705ba2..c999fdd58a 100644
--- a/docs/GVARIANT-SERIALIZATION.md
+++ b/docs/GVARIANT-SERIALIZATION.md
@@ -2,6 +2,7 @@
 title: GVariant D-Bus Message Serialization
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # GVariant D-Bus Message Serialization
diff --git a/docs/HACKING.md b/docs/HACKING.md
index 3131597c22..7ca30486a6 100644
--- a/docs/HACKING.md
+++ b/docs/HACKING.md
@@ -2,6 +2,7 @@
 title: Hacking on systemd
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Hacking on systemd
diff --git a/docs/HOME_DIRECTORY.md b/docs/HOME_DIRECTORY.md
index a3eabb7e63..142da3a874 100644
--- a/docs/HOME_DIRECTORY.md
+++ b/docs/HOME_DIRECTORY.md
@@ -2,6 +2,7 @@
 title: Home Directories
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Home Directories
diff --git a/docs/INITRD_INTERFACE.md b/docs/INITRD_INTERFACE.md
index e59bbcce15..2d1d0ac607 100644
--- a/docs/INITRD_INTERFACE.md
+++ b/docs/INITRD_INTERFACE.md
@@ -2,6 +2,7 @@
 title: Initrd Interface
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 
diff --git a/docs/JOURNAL_FILE_FORMAT.md b/docs/JOURNAL_FILE_FORMAT.md
index 0d340b876b..2bfc7a10ca 100644
--- a/docs/JOURNAL_FILE_FORMAT.md
+++ b/docs/JOURNAL_FILE_FORMAT.md
@@ -2,6 +2,7 @@
 title: Journal File Format
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Journal File Format
diff --git a/docs/JOURNAL_NATIVE_PROTOCOL.md b/docs/JOURNAL_NATIVE_PROTOCOL.md
index fced45942b..657eca25a0 100644
--- a/docs/JOURNAL_NATIVE_PROTOCOL.md
+++ b/docs/JOURNAL_NATIVE_PROTOCOL.md
@@ -2,6 +2,7 @@
 title: Native Journal Protocol
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Native Journal Protocol
diff --git a/docs/PASSWORD_AGENTS.md b/docs/PASSWORD_AGENTS.md
index 75b10da53f..7d810fbbd9 100644
--- a/docs/PASSWORD_AGENTS.md
+++ b/docs/PASSWORD_AGENTS.md
@@ -2,6 +2,7 @@
 title: Password Agents
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Password Agents
diff --git a/docs/PORTABILITY_AND_STABILITY.md b/docs/PORTABILITY_AND_STABILITY.md
index 5d52608678..674fe89b94 100644
--- a/docs/PORTABILITY_AND_STABILITY.md
+++ b/docs/PORTABILITY_AND_STABILITY.md
@@ -2,6 +2,7 @@
 title: Interface Portability and Stability
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Interface Portability and Stability Promise
diff --git a/docs/PORTABLE_SERVICES.md b/docs/PORTABLE_SERVICES.md
index 3de15f501b..6091174ea0 100644
--- a/docs/PORTABLE_SERVICES.md
+++ b/docs/PORTABLE_SERVICES.md
@@ -2,6 +2,7 @@
 title: Portable Services Introduction
 category: Concepts
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Portable Services Introduction
diff --git a/docs/PREDICTABLE_INTERFACE_NAMES.md b/docs/PREDICTABLE_INTERFACE_NAMES.md
index 07529e7a70..ddd7d29643 100644
--- a/docs/PREDICTABLE_INTERFACE_NAMES.md
+++ b/docs/PREDICTABLE_INTERFACE_NAMES.md
@@ -2,6 +2,7 @@
 title: Predictable Network Interface Names
 category: Concepts
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Predictable Network Interface Names
diff --git a/docs/RANDOM_SEEDS.md b/docs/RANDOM_SEEDS.md
index da3fe40baa..3473214054 100644
--- a/docs/RANDOM_SEEDS.md
+++ b/docs/RANDOM_SEEDS.md
@@ -2,6 +2,7 @@
 title: Random Seeds
 category: Concepts
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Random Seeds
diff --git a/docs/RELEASE.md b/docs/RELEASE.md
index cafe766e03..112c521622 100644
--- a/docs/RELEASE.md
+++ b/docs/RELEASE.md
@@ -2,6 +2,7 @@
 title: Steps to a Successful Release
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Steps to a Successful Release
diff --git a/docs/RESOLVED-VPNS.md b/docs/RESOLVED-VPNS.md
index 1010bed4b2..89a5cdfacf 100644
--- a/docs/RESOLVED-VPNS.md
+++ b/docs/RESOLVED-VPNS.md
@@ -2,6 +2,7 @@
 title: systemd-resolved and VPNs
 category: Networking
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # `systemd-resolved.service` and VPNs
diff --git a/docs/ROOT_STORAGE_DAEMONS.md b/docs/ROOT_STORAGE_DAEMONS.md
index 08af00926c..6ab158cd2b 100644
--- a/docs/ROOT_STORAGE_DAEMONS.md
+++ b/docs/ROOT_STORAGE_DAEMONS.md
@@ -2,6 +2,7 @@
 title: Storage Daemons for the Root File System
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # systemd and Storage Daemons for the Root File System
diff --git a/docs/SECURITY.md b/docs/SECURITY.md
index bd2915bab6..a44b90de89 100644
--- a/docs/SECURITY.md
+++ b/docs/SECURITY.md
@@ -2,6 +2,7 @@
 title: Reporting of Security Vulnerabilities
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Reporting of Security Vulnerabilities
diff --git a/docs/TEMPORARY_DIRECTORIES.md b/docs/TEMPORARY_DIRECTORIES.md
index c0f945c885..c703651791 100644
--- a/docs/TEMPORARY_DIRECTORIES.md
+++ b/docs/TEMPORARY_DIRECTORIES.md
@@ -2,6 +2,7 @@
 title: Using /tmp/ and /var/tmp/ Safely
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Using `/tmp/` and `/var/tmp/` Safely
diff --git a/docs/TESTING_WITH_SANITIZERS.md b/docs/TESTING_WITH_SANITIZERS.md
index 2622682bd9..4f965c9617 100644
--- a/docs/TESTING_WITH_SANITIZERS.md
+++ b/docs/TESTING_WITH_SANITIZERS.md
@@ -2,6 +2,7 @@
 title: Testing systemd Using Sanitizers
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Testing systemd Using Sanitizers
diff --git a/docs/TRANSIENT-SETTINGS.md b/docs/TRANSIENT-SETTINGS.md
index 77dff10bee..d67f7f95e2 100644
--- a/docs/TRANSIENT-SETTINGS.md
+++ b/docs/TRANSIENT-SETTINGS.md
@@ -2,6 +2,7 @@
 title: What Settings Are Currently Available For Transient Units?
 category: Interfaces
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # What Settings Are Currently Available For Transient Units?
diff --git a/docs/TRANSLATORS.md b/docs/TRANSLATORS.md
index fa74e19fee..135f35793b 100644
--- a/docs/TRANSLATORS.md
+++ b/docs/TRANSLATORS.md
@@ -2,6 +2,7 @@
 title: Notes for Translators
 category: Contributing
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Notes for Translators
diff --git a/docs/UIDS-GIDS.md b/docs/UIDS-GIDS.md
index 5342ccd166..ea7ec63965 100644
--- a/docs/UIDS-GIDS.md
+++ b/docs/UIDS-GIDS.md
@@ -2,6 +2,7 @@
 title: Users, Groups, UIDs and GIDs on systemd Systems
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # Users, Groups, UIDs and GIDs on systemd Systems
diff --git a/docs/USERDB_AND_DESKTOPS.md b/docs/USERDB_AND_DESKTOPS.md
index babaaaf3c7..e6097eab1e 100644
--- a/docs/USERDB_AND_DESKTOPS.md
+++ b/docs/USERDB_AND_DESKTOPS.md
@@ -2,6 +2,7 @@
 title: systemd-homed and JSON User/Group Record Support in Desktop Environments
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # `systemd-homed` and JSON User/Group Record Support in Desktop Environments
diff --git a/docs/USER_GROUP_API.md b/docs/USER_GROUP_API.md
index bcb0b5d257..cefe6d3dce 100644
--- a/docs/USER_GROUP_API.md
+++ b/docs/USER_GROUP_API.md
@@ -2,6 +2,7 @@
 title: User/Group Record Lookup API via Varlink
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # User/Group Record Lookup API via Varlink
diff --git a/docs/USER_NAMES.md b/docs/USER_NAMES.md
index daafdf2dce..1757c5b783 100644
--- a/docs/USER_NAMES.md
+++ b/docs/USER_NAMES.md
@@ -2,6 +2,7 @@
 title: User/Group Name Syntax
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # User/Group Name Syntax
diff --git a/docs/USER_RECORD.md b/docs/USER_RECORD.md
index 73dfc5bec4..6b607dfd45 100644
--- a/docs/USER_RECORD.md
+++ b/docs/USER_RECORD.md
@@ -2,6 +2,7 @@
 title: JSON User Records
 category: Users, Groups and Home Directories
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 # JSON User Records
diff --git a/docs/index.md b/docs/index.md
index c5d7f84991..ff26bd3398 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -1,5 +1,6 @@
 ---
 layout: default
+SPDX-License-Identifier: LGPL-2.1-or-later
 ---
 
 systemd is a suite of basic building blocks for a Linux system. It provides a system and service manager that runs as PID 1 and starts the rest of the system.