Update main.yml

Author: softmarshmallow

.github/workflows/main.yml

@@ -20,7 +20,7 @@ jobs:
           cd example
           flutter build web --release
       - run: |
-          cd build/web
+          cd example/build/web
           git init
           git config --global user.email [email protected]
           git config --global user.name softmarshmallow