DOC: Link to Numpy's Git Resources in developer guide is no longer active

[josh-tan-bt]

Pandas version checks

• 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/dev/development/contributing.html

Documentation problem

Link to Numpy's Git resources tutorial (https://numpy.org/doc/stable/dev/gitwash/git_resources.html) leads to a 404 "file not found" error

Looking at historical versions of numpy documentation, this page used to exist but was removed in version 2.0.

Suggested fix for documentation

Remove link as it is no longer supported by NumPy, and leave link to existing Git documentation as sufficient.

[fbourgey]

take