Update release instructions to build python package in prod mode

jasongrout · jasongrout · commit a50d35b4ae73 · 2021-03-11T13:38:59.000-08:00
diff --git a/RELEASE.md b/RELEASE.md
@@ -25,6 +25,8 @@ conda activate jupyter-renderers-release
 To publish all of the extensions on PyPI, run the following command:
 
 ```
+git clean -dfx
+yarn
 yarn run build-py
 twine upload dist/*
 ```
