Remove manifest.py

Author: thatbudakguy

README.md

@@ -100,7 +100,7 @@ micropython -m unittest
 
 ## Releasing
 
-To release a new version, update the versions in `manifest.py` and `package.json`. Commit your changes and make a pull request. After merging, create a new tag and push to GitHub:
+To release a new version, update the version in `package.json`. Commit your changes and make a pull request. After merging, create a new tag and push to GitHub:
 
 ```bash
 git tag vX.Y.Z