Logging guide should include "Metrics" section

[jogerj]

Describe the bug
quarkus.log.metrics.enabled=true
TIL metrics for logging is disabled by default and can be overriden by a config value. Neither does Microprofile/Micrometer or logging guide pages referenced this.
The only reference I found to this config is in https://quarkus.io/guides/all-config

This wasn't just for logging, it seems other than the all-configs page, there isn't a page dedicated for which metrics are enabled by default.

I see two ways of resolving this:

1. All guide pages where metrics are supported should have this included (e.g. see https://quarkus.io/guides/hibernate-orm#metrics)
2. Micrometer/SmallRye page should include all configs possible for metrics supported.

Reason being if I want to implement metrics for a certain extension/plugin, the first thing I would look at would be either the guide related to the plugin, and/or the SmallRye/Micrometer page.

Which pages
https://quarkus.io/guides/logging
https://quarkus.io/guides/telemetry-micrometer
https://quarkus.io/guides/telemetry-micrometer-tutorial
https://quarkus.io/guides/smallrye-metrics