docs: TLS configuration

[javier-aliaga]

Description

Modify docs to document new TLS Configuration for grpc connections

Issue reference

We strive to have all PR being opened based on an issue, where the problem or feature have been discussed prior to implementation.

Please reference the issue this PR will close: #[issue number]

Checklist

Please make sure you've completed the relevant tasks for this PR, out of the following list:

• Code compiles correctly
• Created/updated tests
• Extended the documentation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.42%. Comparing base (d759c53) to head (ca20c39).
Report is 143 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #1369      +/-   ##
============================================
+ Coverage     76.91%   77.42%   +0.51%     
- Complexity     1592     1772     +180     
============================================
  Files           145      204      +59     
  Lines          4843     5445     +602     
  Branches        562      597      +35     
============================================
+ Hits           3725     4216     +491     
- Misses          821      909      +88     
- Partials        297      320      +23     

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[cicoyle]

lgtm. Think we can take this out of draft and merge as is unless you were planning to add more? :)