Document TLS Server Renegotiation Behavior

[skmcgrail]

Issues:

Addresses P171690365

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[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.61%. Comparing base (412018d) to head (a96514e).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2018      +/-   ##
==========================================
- Coverage   78.62%   78.61%   -0.01%     
==========================================
  Files         596      596              
  Lines      103012   103012              
  Branches    14661    14662       +1     
==========================================
- Hits        80989    80987       -2     
- Misses      21373    21375       +2     
  Partials      650      650              

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