How-to doc for telemetry

[drcaramelsyrup]

What is the problem your feature solves, or the need it fulfills?

Right now there's user guide docs on how to set up a Prometheus endpoint for metrics reporting. It should also be fairly easy to integrate certain other telemetry and observability frameworks like OpenTelemetry, though it would be nice to have a quick how-to guide to show this.

Describe the solution you'd like

user_guide docs to provide more examples of what telemetry we support.