fix: linkchecker and cheatsheet links

[germa89]

Description

As the title.

Issue linked

Close #3588

Checklist

• I have visited and read Develop PyMAPDL.
• I have tested my changes locally
• I have added necessary documentation or updated existing documentation.
• I have followed the PyMAPDL coding style guidelines.
• I have added appropriate unit tests that also ensure the minimal coverage criteria.
• I have reviewed my changes before submitting this pull request.
• I have linked the issue or issues that are solved to the PR if any.
• I have assigned this PR to myself.
• I have marked this PR as draft if it is not ready to be reviewed yet.
• I have made sure that the title of my PR follows Commit naming conventions (e.g. feat: adding new MAPDL command)

[ansys-reviewer-bot]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.99%. Comparing base (93f9906) to head (6bf1d90).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3589   +/-   ##
=======================================
  Coverage   86.98%   86.99%           
=======================================
  Files         187      187           
  Lines       14623    14623           
=======================================
+ Hits        12720    12721    +1     
+ Misses       1903     1902    -1     

[germa89]

Run https://github.com/ansys/pymapdl/actions/runs/12089283639 got successful.

GitHub

LinkCheck - All files 🔗 · ansys/pymapdl@6bf1d90

Pythonic interface to MAPDL. Contribute to ansys/pymapdl development by creating an account on GitHub.

[germa89]

@pyansys-ci-bot LGTM.

[pyansys-ci-bot]

✅ Approving this PR because germa89 said so in here 😬