Add test change note to README

[petesfrench]

Added a test change note to the README.

Done

• [List of work items including drive-bys - remember to add the why and what of this work.]

QA

• Open the DEMO
• Alternatively, check out this feature branch
• Run the site using the command ./run serve or dotrun
• View the site locally in your web browser at: http://0.0.0.0:8001/
  • Be sure to test on mobile, tablet and desktop screen sizes
• [List additional steps to QA the new features or prove the bug has been resolved]

Issue / Card

Fixes #

Screenshots

[If relevant, please include a screenshot.]

Help

QA steps - Commit guidelines

[webteam-app]

Demo

Jenkins

demos.haus

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 48.36%. Comparing base (2044b70) to head (2b4cfd9).
⚠️ Report is 11 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #16403   +/-   ##
=======================================
  Coverage   48.36%   48.36%           
=======================================
  Files          37       37           
  Lines        5905     5905           
=======================================
  Hits         2856     2856           
  Misses       3049     3049           

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