Merge pull request #4067 from luixxiul/patch-1

Update docs/configuring-playbook-jitsi.md: add the copyright header

docs/configuring-playbook-jitsi.md

@@ -1,3 +1,19 @@
+<!--
+SPDX-FileCopyrightText: 2020 - 2024 Slavi Pantaleev
+SPDX-FileCopyrightText: 2020 - 2024 MDAD project contributors
+SPDX-FileCopyrightText: 2020 Aaron Raimist
+SPDX-FileCopyrightText: 2020 Mickaël Cornière
+SPDX-FileCopyrightText: 2020 Chris van Dijk
+SPDX-FileCopyrightText: 2020 Dominik Zajac
+SPDX-FileCopyrightText: 2022 François Darveau
+SPDX-FileCopyrightText: 2022 Warren Bailey
+SPDX-FileCopyrightText: 2023 Antonis Christofides
+SPDX-FileCopyrightText: 2023 Pierre 'McFly' Marty
+SPDX-FileCopyrightText: 2024 - 2025 Suguru Hirahara
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
 # Setting up the Jitsi video-conferencing platform (optional)
 
 The playbook can install and configure the [Jitsi](https://jitsi.org/) video-conferencing platform for you.