OpenTelemetry Readme

[mikehaller]

Some readme documentation for the OpenTelemetry setup in PR #119 - e.g. how to build, how to install the otel components and the Jaeger UI.

[codecov]

Codecov Report

Attention: Patch coverage is 20.83333% with 38 lines in your changes missing coverage. Please review.

Project coverage is 59.44%. Comparing base (ec91336) to head (50b965e).

Files with missing lines	Patch %	Lines
databroker/src/lib.rs	0.00%	23 Missing ⚠️
databroker/src/open_telemetry.rs	0.00%	15 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #134      +/-   ##
==========================================
- Coverage   60.14%   59.44%   -0.71%     
==========================================
  Files          33       34       +1     
  Lines       16198    15112    -1086     
==========================================
- Hits         9743     8983     -760     
+ Misses       6455     6129     -326     

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[mikehaller]

The build fails due to markdown-check trying to validate a http://localhost links in the readme.

Fix in kuksa-actions, please have a look at eclipse-kuksa/kuksa-actions#18