Add NGINX Ingress controller with OSM tutorial

[jasonwilliams14]

Proposed changes

This document covers how to configure NGINX Ingress controller with Open Service Mesh.

Checklist

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

• [ x] I have read the CONTRIBUTING doc
• [ x] I have added tests that prove my fix is effective or that my feature works
• [ x] I have checked that all unit tests pass after adding my changes
• [ x] I have updated necessary documentation
• [ x] 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-commenter]

Codecov Report

Merging #3592 (d7044a1) into main (28eee73) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #3592   +/-   ##
=======================================
  Coverage   52.39%   52.39%           
=======================================
  Files          59       59           
  Lines       16902    16902           
=======================================
  Hits         8855     8855           
  Misses       7750     7750           
  Partials      297      297           

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[ADubhlaoich]

Changed to approved, though I have flagged a missing frontmatter block to Jason that has gone missing that will be needed for this doc to be visible.

[jasonwilliams14]

Changed to approved, though I have flagged a missing frontmatter block to Jason that has gone missing that will be needed for this doc to be visible.

Should all be fixed now. Updated this morning.