[8.x] (Doc+) link video to checking health (#193023) (#193047)

# Backport

This will backport the following commits from `main` to `8.x`:
- [(Doc+) link video to checking health
(#193023)](#193023)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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Co-authored-by: Stef Nestor <26751266+stefnestor@users.noreply.github.com>

docs/setup/access.asciidoc

@@ -65,4 +65,4 @@ For example:
 * When {kib} is unable to connect to a healthy {es} cluster, errors like `master_not_discovered_exception` or `unable to revive connection` or `license is not available` errors appear.
 * When one or more {kib}-backing indices are unhealthy, the `index_not_green_timeout` error appears.
 
-For more information, refer to our https://www.elastic.co/blog/troubleshooting-kibana-health[walkthrough on troubleshooting Kibana Health].
+You can find a Kibana health troubleshooting walkthrough in https://www.elastic.co/blog/troubleshooting-kibana-health[this blog] or in link:https://www.youtube.com/watch?v=AlgGYcpGvOA[this video].