Docs: Correct broken link and update reference (#74349)

* Update index.md

This commit addresses a broken link found in the documentation related to the "Prometheus dashboard with repeating panels".

- The link provided on line 98, leading to [Prometheus dashboard with repeating panels](https://play.grafana.org/d/000000036/prometheus-repeat), appears to be no longer active.

**Proposed Change**:
- In order to maintain the illustrative and informative nature of the documentation, I'm suggesting we substitute the broken link with a reference to another relevant blog post or article. [How to automatically repeat rows and panels in dynamic dashboards](https://grafana.com/blog/2020/06/09/learn-grafana-how-to-automatically-repeat-rows-and-panels-in-dynamic-dashboards/)

Thank you for considering this change.

* Update docs/sources/panels-visualizations/configure-panel-options/index.md

Thanks for the feedback and review :)

Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>

---------

Co-authored-by: Isabel <76437239+imatwawana@users.noreply.github.com>
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Rodrigo Tavares 2023-09-06 15:47:16 +02:00 committed by GitHub
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@ -95,7 +95,7 @@ You can configure Grafana to dynamically add panels or rows to a dashboard. A dy
Repeating panels require variables to have one or more items selected; you cannot repeat a panel zero times to hide it.
{{% /admonition %}}
To see an example of repeating panels, refer to [Prometheus dashboard with repeating panels](https://play.grafana.org/d/000000036/prometheus-repeat).
To see an example of repeating panels, refer to [this dashboard with repeating panels](https://play.grafana.org/d/testdata-repeating/testdata-repeating-panels?orgId=1).
**Before you begin:**