Explain that auto-invite also marks as admin

registration.example.yaml

@@ -19,4 +19,5 @@ ooye:
   server_name: [the part after the colon in your matrix id, like cadence.moe]
   server_origin: [the full protocol and domain of your actual matrix server's location, with no trailing slash, like https://matrix.cadence.moe]
   invite:
-    # - @cadence:cadence.moe # uncomment this to auto-invite the named user to newly created spaces
+    # uncomment this to auto-invite the named user to newly created spaces and mark them as admin (PL 100) everywhere
+    # - @cadence:cadence.moe