Apply feedback with open TODO

Author: Daraan

CONTRIBUTING.md

@@ -27,7 +27,7 @@ for more detail.
 ## Development version
 After a release the version is increased once in [pyproject.toml](/pyproject.toml) and
 appended with a `.dev` suffix, e.g. `4.0.1.dev`.
-Further subsequent updates, i.e. to `.dev2`, are not planned between releases.
+Further subsequent updates are not planned between releases.
 
 # Type stubs
 
@@ -74,5 +74,4 @@ may have installed.
 - Release automation will finish the release. You'll have to manually
   approve the last step before upload.
 
-- After the release has been published on PyPI the version of the repositiory
-  is upgraded to the next [development versions](#development-version).
+- After the release has been published on PyPI upgrade the version in number in [pyproject.toml](/pyproject.toml) to a `dev` version of the next planned release. For example, change 4.1.1 to 4.X.X.dev, see also [Development versions](#development-version). # TODO decide on major vs. minor increase.