Add distributed_tracing argument to configure and new docs about context propagation

[alexmojaki]

Fixes #554

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (8284b3f) to head (1ad1153).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #773   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          137       137           
  Lines        10873     10963   +90     
  Branches       772       778    +6     
=========================================
+ Hits         10873     10963   +90     

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[dmontagu]

Seems very good, one small note above