Pandas version checks

  • [x] I have checked that the issue still exists on the latest versions of the docs on main here

Location of the documentation

https://pandas.pydata.org/docs/development/contributing_codebase.html

Documentation problem

The link to the pandas-coverage-app links to an empty page on heroku.

Suggested fix for documentation

Either fix the doc to not mention the documentation coverage tool, rework the tool to be within the code base, or update the heroku link to contain the tool