[Orleans] Update clustering implementation docs (dotnet#43731)

* Update cluster membership implementation doc

* Update .openpublishing.redirection.orleans.json

* Add Apache Cassandra implementation details to documentation.

* Apply suggestions from code review

---------

Co-authored-by: David Pine <[email protected]>

Author: ReubenBond

Diff for: .openpublishing.redirection.orleans.json

@@ -39,6 +39,11 @@
         {
             "source_path_from_root": "/docs/orleans/host/configuration-guide/activation-garbage-collection.md",
             "redirect_url": "/dotnet/orleans/host/configuration-guide/activation-collection"
+        },
+        {
+            "source_path_from_root": "/docs/orleans/implementation/cluster-configuration.md",
+            "redirect_url": "/dotnet/orleans/implementation/cluster-management"
         }
+
     ]
 }