* Initial Telemetry API docs
Currently, the docs only have Telemetry for tracing. This adds a common
Telemetry API doc for high level info, shared for all 3 types. It also
adds some info about access logging via Telemetry.
We should likely add a similar page for Metrics, but I did not do it
here.
* fix gen
* fix dead links
* fix typo
* dead link
* one more
* 1 more?
* I hope this is it...
* again???
John Howard