Add a page summarizing available metrics list.

[nithyatsu]

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Description

Add details of metrics

Auto-generated description

🤖 Generated by Copilot at 44561ec

Summary

🔧📝🚚

This pull request updates the documentation and configuration files to use the new GitHub organization name radius-project instead of project-radius. It also adds a new file metrics.md to document the custom metrics that Radius records and exposes.

Oh, we're the crew of the radius-project
And we sail the code seas with pride
We've changed our name from project-radius
So pull on the rope and don't hide

Walkthrough

• Updated the organization name from project-radius to radius-project in various files and links (link, link, link, link, link, link, link, link, link, link, link, link, link, link, link, link)
• Added a new file metrics.md in the docs/content/guides/operations/control-plane/observability/metrics folder to document the custom metrics that Radius records and exposes (link)

Issue reference

Fixes: radius-project/radius#5261

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