cross platform

Author: GoEntity

.github/workflows/go.yml

@@ -61,6 +61,11 @@ jobs:
       if: runner.os == 'macOS'
       run: GOOS=darwin GOARCH=amd64 CGO_ENABLED=1 go build -v -o output/GoFlappy-macos .
 
+      #assets
+    - name: Copy assets
+      run: |
+        cp -r ./assets output/
+
     - name: Upload Artifacts
       uses: actions/upload-artifact@v2
       with: