docs: update RELEASING.md

Author: oz123

Diff for: RELEASING.md

@@ -1,10 +1,7 @@
 # Releasing Pipenv
-The following steps are to be done when making a new release:
 
-1.) Update the version number in __version__.py
-2.) Run invoke release.generate-changelog
-3.) Commit and push this to main
-4.) Tag the main branch with v2022.6.28 assuming we did it today
-5.) Push tag and verify pypi build works and happens
-6.) Edit the release notes in github and click auto-generate the release notes button.
-7.) Celebrate (edited)
+To create a new release:
+
+```
+pipenv run invoke release.release
+```