feat(readme): screenshot

Author: Mte90

.github/workflows/build-plugin.yml

@@ -34,7 +34,7 @@ jobs:
         echo "version=$VERSION" >> $GITHUB_OUTPUT
     
     - name: Upload plugin artifact
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: picocode-plugin-${{ steps.plugin_version.outputs.version }}
         path: plugin/build/distributions/*.zip