Documenting the WebpackEncoreBundle caching option

Author: weaverryan

symfony/webpack-encore-bundle/1.0/config/packages/webpack_encore.yaml

@@ -2,3 +2,7 @@ webpack_encore:
     # The path where Encore is building the assets.
     # This should match Encore.setOutputPath() in webpack.config.js.
     output_path: '%kernel.project_dir%/public/build'
+
+    # Cache the entrypoints.json (rebuild Symfony's cache when entrypoints.json changes)
+    # Available in version 1.2
+    #cache: '%kernel.debug%'