Remove manual and update README

[Sparks29032]

Closes #209 and closes #166. Brings README.rst up to date for the next release and removes mentions of manual.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.23%. Comparing base (ed2c088) to head (d0066e6).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #218   +/-   ##
=======================================
  Coverage   97.23%   97.23%           
=======================================
  Files          20       20           
  Lines         903      903           
=======================================
  Hits          878      878           
  Misses         25       25           

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.