Update release order

RELEASE.md

@@ -40,9 +40,9 @@ for twine setup instructions and for why twine is the recommended method.
 # Publish the npm packages:
 npm run publish  
 # Update jupyterlab/_version.py
-# Commit and tag and push the tag
 # Prep the static assets for release:
 cd jupyterlab && npm run publish && cd ..
+# Commit and tag and push the tag
 rm -rf dist
 python setup.py sdist
 python setup.py bdist_wheel --universal