Release 2.1.2 docs

[salonichf5]

Update docs for 2.1.2 release

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.92%. Comparing base (936fc8e) to head (4e63b3c).
⚠️ Report is 1 commits behind head on release-2.1.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-2.1    #3963      +/-   ##
===============================================
+ Coverage        86.90%   86.92%   +0.01%     
===============================================
  Files              128      128              
  Lines            16059    16059              
  Branches            62       62              
===============================================
+ Hits             13956    13959       +3     
+ Misses            1932     1930       -2     
+ Partials           171      170       -1     

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