Fix flatpak manifest

build-aux/uk.me.bcowan.Rugby.yml

@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: CC0-1.0
 
-app-id: uk.me.bcowan.rugby
+app-id: uk.me.bcowan.Rugby
 runtime: org.gnome.Platform
 runtime-version: "3.36"
 sdk: org.gnome.Sdk
@@ -13,9 +13,9 @@ finish-args:
   - "--socket=wayland"
 
 modules:
-  name: rugby
-  buildsystem: meson
-  builddir: true
-  sources:
-    - type: git
-      url: https://git.fossgalaxy.com/SuborbitalPigeon/rugby.git
+  - name: rugby
+    buildsystem: meson
+    builddir: true
+    sources:
+      - type: git
+        url: https://git.fossgalaxy.com/SuborbitalPigeon/rugby.git