Use a room alias on Matrix Specification

"#matrix:example.org" is used as an example of a room alias on https://spec.matrix.org/v1.12/#room-aliases

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

roles/custom/matrix-bot-draupnir/templates/production.yaml.j2

@@ -109,7 +109,7 @@ automaticallyRedactForReasons:
 #
 # Note: These must be matrix.to URLs
 #protectedRooms:
-#  - "https://matrix.to/#/#yourroom:example.org"
+#  - "https://matrix.to/#/#matrix:example.org"
 
 # Whether or not to add all joined rooms to the "protected rooms" list
 # (excluding the management room and watched policy list rooms, see below).

roles/custom/matrix-bot-mjolnir/templates/production.yaml.j2

@@ -103,7 +103,7 @@ automaticallyRedactForReasons:
 #
 # Note: These must be matrix.to URLs
 #protectedRooms:
-#  - "https://matrix.to/#/#yourroom:example.org"
+#  - "https://matrix.to/#/#matrix:example.org"
 
 # Whether or not to add all joined rooms to the "protected rooms" list
 # (excluding the management room and watched policy list rooms, see below).