doc: Update readme for new changes

[cadenmyers13]

small readme updates and a typo in the getting started.

[cadenmyers13]

@sbillinge ready for merge. small readme updates

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.93%. Comparing base (9981f82) to head (81b3f31).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #310 +/- ##
=======================================
Coverage 99.93% 99.93% =======================================
Files 24 24 Lines 1570 1624 +54 =======================================
+ Hits 1569 1623 +54 
Misses 1 1 

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

[sbillinge]

Thanks @cadenmyers13