[docs] Added a note on activating HAICRYPT logging

[maxsharabayko]

As I always have to spend 5-10 minutes to find out how to activate the HAICRYPT logging, I thought it would be helpful to have it in our docs.

[codecov-commenter]

Codecov Report

Merging #2529 (6fd317b) into master (cbfa812) will increase coverage by 0.53%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #2529      +/-   ##
==========================================
+ Coverage   64.82%   65.36%   +0.53%     
==========================================
  Files         100      100              
  Lines       19767    19767              
==========================================
+ Hits        12814    12920     +106     
+ Misses       6953     6847     -106     

Impacted Files	Coverage Δ
srtcore/buffer_snd.cpp	67.10% <0.00%> (-0.66%)	⬇️
test/test_bonding.cpp	93.68% <0.00%> (-0.53%)	⬇️
srtcore/buffer_rcv.cpp	58.44% <0.00%> (-0.39%)	⬇️
srtcore/core.cpp	59.93% <0.00%> (+0.58%)	⬆️
srtcore/queue.cpp	81.34% <0.00%> (+0.74%)	⬆️
srtcore/window.cpp	83.11% <0.00%> (+1.29%)	⬆️
srtcore/api.cpp	54.92% <0.00%> (+1.69%)	⬆️
srtcore/cache.h	83.07% <0.00%> (+3.07%)	⬆️
srtcore/list.cpp	82.11% <0.00%> (+12.73%)	⬆️

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[stevomatthews]

Minor edits