zip mods

.github/workflows/upload-artifacts.yml

@@ -14,11 +14,11 @@ jobs:
     - uses: actions/checkout@v2
     - uses: textbook/git-checkout-submodule-action@2.0.0
 
+    - name: zip worldmods
+      run: zip -r worldmods.zip . -x '*.git*' -x 'advtrains/assets/*'
+
     - name: Upload worldmods
       uses: actions/upload-artifact@v2
       with:
         name: worldmods
-        path: |
-          .
-          !./**/*.git
-          !./advtrains/assets
+        path: worldmods.zip