Add basic licenses using reuse

Signed-off-by: MTRNord <[email protected]>

Author: MTRNord

.editorconfig

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Matrix.org Foundation C.I.C.
+#
+# SPDX-License-Identifier: Apache-2.0
+
 root = true
 
 [*]

.github/workflows/astro-check.yaml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Matrix.org Foundation C.I.C.
+#
+# SPDX-License-Identifier: Apache-2.0
+
 name: Check website
 on:
   push:

.gitignore

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2025 The Matrix.org Foundation C.I.C.
+#
+# SPDX-License-Identifier: Apache-2.0
+
 # build output
 dist/
 # generated types

CONTRIBUTING.md

@@ -1,3 +1,9 @@
+<!--
+SPDX-FileCopyrightText: 2025 The Matrix.org Foundation C.I.C.
+
+SPDX-License-Identifier: CC-BY-SA-4.0
+-->
+
 # Contributing to conference.matrix.org
 
 Thank you for taking the time to contribute to Matrix!