Update docs: add copyright headers for reusing them at the MASH project

This commit adds copyright headers to the same kind of docs as ones linked from e48af8a327/docs/README.md, so that these files can be reused over there.

- docs/README.md
- prerequisites.md
- configuring-dns.md
- getting-the-playbook.md
- configuring-playbook.md
- maintenance-upgrading-services.md
- maintenance-and-troubleshooting.md
- uninstalling.md

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

docs/README.md

@@ -1,3 +1,12 @@
+<!--
+SPDX-FileCopyrightText: 2018 - 2021 Slavi Pantaleev
+SPDX-FileCopyrightText: 2018 Aaron Raimist
+SPDX-FileCopyrightText: 2019 Lyubomir Popov
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Table of Contents
 
 ## ⬇️ Installaton guides <!-- NOTE: the 🚀 emoji is used by "Getting started" on README.md -->

docs/configuring-dns.md

@@ -1,3 +1,20 @@
+<!--
+SPDX-FileCopyrightText: 2018 - 2024 Slavi Pantaleev
+SPDX-FileCopyrightText: 2018 - 2024 MDAD project contributors
+SPDX-FileCopyrightText: 2019 Edgars Voroboks
+SPDX-FileCopyrightText: 2020 - 2021 Aaron Raimist
+SPDX-FileCopyrightText: 2020 Marcel Partap
+SPDX-FileCopyrightText: 2020 Rónán Duddy
+SPDX-FileCopyrightText: 2021 Yannick Goossens
+SPDX-FileCopyrightText: 2022 Nikita Chernyi
+SPDX-FileCopyrightText: 2022 Julian Foad
+SPDX-FileCopyrightText: 2023 Johan Swetzén
+SPDX-FileCopyrightText: 2023 Pierre 'McFly' Marty
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Configuring your DNS settings
 
 <sup>[Prerequisites](prerequisites.md) > Configuring your DNS settings > [Getting the playbook](getting-the-playbook.md) > [Configuring the playbook](configuring-playbook.md) > [Installing](installing.md)</sup>

docs/getting-the-playbook.md

@@ -1,3 +1,10 @@
+<!--
+SPDX-FileCopyrightText: 2019 Slavi Pantaleev
+SPDX-FileCopyrightText: 2024 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Getting the playbook
 
 <sup>[Prerequisites](prerequisites.md) > [Configuring your DNS settings](configuring-dns.md) > Getting the playbook > [Configuring the playbook](configuring-playbook.md) > [Installing](installing.md)</sup>

docs/installing.md

@@ -1,3 +1,17 @@
+<!--
+SPDX-FileCopyrightText: 2018 - 2023 Slavi Pantaleev
+SPDX-FileCopyrightText: 2018 Aaron Raimist
+SPDX-FileCopyrightText: 2018 - 2024 MDAD project contributors
+SPDX-FileCopyrightText: 2019 Edgars Voroboks
+SPDX-FileCopyrightText: 2019 Michael Haak
+SPDX-FileCopyrightText: 2020 Kevin Lanni
+SPDX-FileCopyrightText: 2024 Nikita Chernyi
+SPDX-FileCopyrightText: 2024 Mitja Jež
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Installing
 
 <sup>[Prerequisites](prerequisites.md) > [Configuring your DNS settings](configuring-dns.md) > [Getting the playbook](getting-the-playbook.md) > [Configuring the playbook](configuring-playbook.md) > Installing</sup>

docs/maintenance-and-troubleshooting.md

@@ -1,3 +1,14 @@
+<!--
+SPDX-FileCopyrightText: 2018 Aaron Raimist
+SPDX-FileCopyrightText: 2019 - 2024 Slavi Pantaleev
+SPDX-FileCopyrightText: 2019 - 2020 MDAD project contributors
+SPDX-FileCopyrightText: 2019 Noah Fleischmann
+SPDX-FileCopyrightText: 2020 Marcel Partap
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Maintenance and Troubleshooting
 
 ## Maintenance

docs/maintenance-upgrading-services.md

@@ -1,3 +1,14 @@
+<!--
+SPDX-FileCopyrightText: 2018 - 2023 Slavi Pantaleev
+SPDX-FileCopyrightText: 2018 Aaron Raimist
+SPDX-FileCopyrightText: 2024 MDAD project contributors
+SPDX-FileCopyrightText: 2024 Nikita Chernyi
+SPDX-FileCopyrightText: 2024 Felix Stupp
+SPDX-FileCopyrightText: 2024 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Upgrading the Matrix services
 
 This playbook not only installs the various Matrix services for you, but can also upgrade them as new versions are made available.

docs/prerequisites.md

@@ -1,3 +1,14 @@
+<!--
+SPDX-FileCopyrightText: 2018 - 2025 Slavi Pantaleev
+SPDX-FileCopyrightText: 2019 - 2022 Aaron Raimist
+SPDX-FileCopyrightText: 2019 - 2023 MDAD project contributors
+SPDX-FileCopyrightText: 2024 Nikita Chernyi
+SPDX-FileCopyrightText: 2024 Fabio Bonelli
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Prerequisites
 
 <sup>Prerequisites > [Configuring your DNS settings](configuring-dns.md) > [Getting the playbook](getting-the-playbook.md) > [Configuring the playbook](configuring-playbook.md) > [Installing](installing.md)</sup>

docs/uninstalling.md

@@ -1,3 +1,11 @@
+<!--
+SPDX-FileCopyrightText: 2018 - 2022 Slavi Pantaleev
+SPDX-FileCopyrightText: 2018 MDAD project contributors
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Uninstalling
 
 > [!WARNING]