Update official Ingress resource link

[ADubhlaoich]

Proposed changes

At some stage the official Kubernetes documentation changed their information architecture, leading to a broken link from the Overview page of the NGINX Ingress Controller documentation.

There may be other instances of broken links from this change, which will be addressed as they are discovered.

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

[lucacome]

@ADubhlaoich we don't use conventional commits. Can you please update your commit message, PR title and PR description following our guidelines?

[codecov]

Codecov Report

Merging #3864 (8672da2) into main (1407c3a) will decrease coverage by 0.03%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #3864      +/-   ##
==========================================
- Coverage   52.40%   52.37%   -0.03%     
==========================================
  Files          59       59              
  Lines       16925    16925              
==========================================
- Hits         8869     8865       -4     
- Misses       7759     7761       +2     
- Partials      297      299       +2     

see 1 file with indirect coverage changes

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[ADubhlaoich]

@ADubhlaoich we don't use conventional commits. Can you please update your commit message, PR title and PR description following our guidelines?

I've adjusted the PR title to remove the conventional commit convention and will do the same for the commit itself, but could you elaborate on what else about it may be incorrect?

The line length for subject and the body of the commit are both under 72 characters: there are no issues to reference as this PR comes directly from a piece of feedback reported on the website - unless the expectation is that a publicly-facing issue is supposed to be written purely for reference of the PR.