Contributor Docs: update gitpod docs and small fix
- [x] No issue for this change, was noticed while running through the onboarding docs
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [ ] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

@noatamir @phofl PyLadies Hamburg Sprint
/preview No preview found for PR #54292. Did the docs build complete? > No preview found for PR #54292. Did the docs build complete?

@noatamir I am not sure what this means, locally (in gitpod) I could build and view the docs) /preview No preview found for PR #54292. Did the docs build complete? trying the auto-preview again. If it doesn't work a screenshot would be fine for me Screen shots for changes:

<img width="727" alt="Screenshot 2023-07-30 at 18 05 04" src="https://github.com/pandas-dev/pandas/assets/23617373/04231262-1d2b-41e6-ab2c-71a6209851da">

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<img width="729" alt="Screenshot 2023-07-30 at 18 06 25" src="https://github.com/pandas-dev/pandas/assets/23617373/6ff843c9-467d-4754-a5c1-d20bcaafbfd0">

 /preview No preview found for PR #54292. Did the docs build complete? Thanks @sleepypioneer!