Add a recipe page for Metrics and Tracing

[pragmaticivan]

I'm submitting a...

• Regression
• Bug report
• Feature request
• Documentation issue or request (new chapter/page)
• Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

Lack of info and recipes for Observability (Metrics, Tracing)

Expected behavior

Add a Recipe page for Metrics with Prometheus Exporter with OpenTelemetry
Add a Recipe page for Tracing with Jaeger (Or Grafana + Tempo) with OpenTelemetry
Possibly add an example on how to integrate spanId and traceId on logs.

Minimal reproduction of the problem with instructions

Possibly use https://github.com/pragmaticivan/nestjs-otel

What is the motivation / use case for changing the behavior?

Make observability easy enough to be a first citizen in new projects.

[kamilmysliwiec]

Would you like to create a PR for this? 🙌