* [DOC] Update Jaeger tutorial to use OTLP Exporter
* fix HttpClient could not be found in .NET framework error during CI
* fix markdown lint issue
* Update jaeger example .csproj file
* Update docs/trace/getting-started-jaeger/getting-started-jaeger.csproj
* Remove redundant options setting and update README
Co-authored-by: Reiley Yang <reyang@microsoft.com>