## I have read the
[CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md)
file.

YES

## What kind of change does this PR introduce?

A feature page copy update:

- headline updated
- revised introduction and key features
- added a call to action on how to create read replicas
- removed benefits/particularly valuable for paragraphs, replaced with
"when to use read replicas"
- added link to blog post

## What is the current behavior?

N/A

## What is the new behavior?

N/A

## Additional context

N/A

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

* **Documentation**
* Revised Read Replicas description to emphasize workload isolation and
reduced multi-region latency.
* Reworked feature content into actionable "When to use Read Replicas"
guidance with usage criteria.
* Added step-by-step "Get Started" setup instructions and region
recommendations.
* Updated media to include a video and refreshed
monitoring/configuration guidance.

<sub>✏️ Tip: You can customize this high-level summary in your review
settings.</sub>
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Co-authored-by: Ana Mogul <ana1337x@users.noreply.github.com>