docs: updates for outdated references

[AntonOfTheWoods]

Update outdated readmes. Fixes #965.

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[e0d]

@sarina Can you review?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (aaf9697) to head (b6e20b8).
⚠️ Report is 2 commits behind head on master.

Additional details and impacted files

@@          Coverage Diff           @@
##           master    #966   +/-   ##
======================================
  Coverage    0.00%   0.00%           
======================================
  Files           3       3           
  Lines          24      24           
======================================
  Misses         24      24           

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[sarina]

It looks good to me, but should be reviewed by a frontend expert. @diana-villalvazo-wgu @brian-smith-tcril or @arbrandes could you take a look?