docs: Add tracing tutorial with Jaeger

[cijothomas]

Trying to add few tutorial, starting with basic Tracing and Jaeger. If there is interest, I want to expand this to cover all signals and scenarios. This can be ported to opentelemetry.io/docs once we reach 1.0 stability for all signals.

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 80.1%. Comparing base (c5fde17) to head (d227dc8).

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #3071   +/-   ##
=====================================
  Coverage   80.1%   80.1%           
=====================================
  Files        126     126           
  Lines      21949   21949           
=====================================
  Hits       17603   17603           
  Misses      4346    4346           

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