fix alphabetical order

.github/workflows/games.yml

@@ -18,8 +18,8 @@ jobs:
         game:
           - altv
           - arma3
-          - source
           - mohaa
+          - source
     steps:
       - uses: actions/checkout@v2
       - uses: docker/setup-buildx-action@v1

README.md

@@ -79,10 +79,10 @@ is tagged correctly.
   * `ghcr.io/parkervcp/games:altv`
 * [`arma3`](/games/arma3)
   * `ghcr.io/parkervcp/games:arma3`
-* [`source`](/games/source)
-  * `ghcr.io/parkervcp/games:source`
 * [`mohaa`](games/mohaa)
   * `ghcr.io/pterodactyl/games:mohaa`  
+* [`source`](/games/source)
+  * `ghcr.io/parkervcp/games:source`
 
 ### [Golang](/go)