Add relref links for DB availability API in release notes

Author: rrelledge

content/operate/rs/release-notes/rs-7-8-releases/rs-7-8-2-28.md

@@ -64,7 +64,13 @@ This version offers:
 
     - For more information, see the [client-side caching introduction]({{<relref "/develop/connect/clients/client-side-caching">}}) and [client-side caching compatibility with Redis Software]({{<relref "/operate/rs/references/compatibility/client-side-caching">}}).
 
-- [Database availability API]({{<relref "/operate/rs/references/rest-api/requests/bdbs/availability">}}), which verifies whether a Redis Software database is available to perform read and write operations and can respond to queries from client applications. Load balancers and automated monitoring tools can use this API to monitor database availability.
+- Database availability API:
+
+    - Verifies whether a Redis Software database is available to perform read and write operations and can respond to queries from client applications. 
+
+    - Load balancers and automated monitoring tools can use this API to monitor database availability.
+
+    - See [Check database availability]({{<relref "/operate/rs/databases/durability-ha/db-availability">}}) and the [REST API reference]({{<relref "/operate/rs/references/rest-api/requests/bdbs/availability">}}) for details.
 
 - Metrics stream engine preview: