Add examples for master-minion path-regex

[jjngx]

Proposed changes

Update documentation and add examples of how to use Master-Minion Ingresses with path-regex annotation.

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues found.

Scanned Manifest Files

[codecov]

Codecov Report

Merging #4235 (3e527e1) into main (cba845e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #4235   +/-   ##
=======================================
  Coverage   51.97%   51.97%           
=======================================
  Files          59       59           
  Lines       16762    16762           
=======================================
  Hits         8712     8712           
  Misses       7753     7753           
  Partials      297      297           

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[brianehlert]

one comment.