chore: update release instructions

RELEASE.md

@@ -1,20 +1,7 @@
-- To release a new version of ipyvuetify on PyPI:
+# Fully automated
 
-Update \_version.py (set release version, remove 'dev')
-git add the \_version.py file and git commit
-`python setup.py sdist upload`
-`python setup.py bdist_wheel upload`
-`git tag -a X.X.X -m 'comment'`
-Update \_version.py (add 'dev' and increment minor)
-git add and git commit
-git push
-git push --tags
+    $ ./release.sh <patch | minor | major>
 
-- To release a new version of jupyter-vuetify on NPM:
+## Making an alpha release
 
-```
-# clean out the `dist` and `node_modules` directories
-git clean -fdx
-npm install
-npm publish
-```
+    $ ./release.sh patch --new-version 1.29.1a1