Custom listen ports document

[jasonwilliams14]

Proposed changes

This document covers how to customize the listen ports that NGINX Ingress controller listens in, if you opt for something different that 80 and 443.

Checklist

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

• [ x] 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
• [x ] I have updated necessary documentation
• I have rebased my branch onto main
• [x ] I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

Merging #3715 (4cbd837) into main (adc42b7) will decrease coverage by 0.02%.
The diff coverage is n/a.

❗ Current head 4cbd837 differs from pull request most recent head 4fc0274. Consider uploading reports for the commit 4fc0274 to get more accurate results

@@            Coverage Diff             @@
##             main    #3715      +/-   ##
==========================================
- Coverage   51.87%   51.85%   -0.02%     
==========================================
  Files          59       59              
  Lines       16705    16705              
==========================================
- Hits         8665     8663       -2     
- Misses       7743     7745       +2     
  Partials      297      297              

see 1 file with indirect coverage changes

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues found.

Scanned Manifest Files

[ADubhlaoich]

I'm marking this as "Request changes" to block it from being merged prematurely; there are some small changes I intend to make.

[ADubhlaoich]

Added my changes. The detail, although brief, is in the commit message.