RS: Add Active-Passive alias to Replica Of index (#1177)

Author: rrelledge

content/operate/rs/databases/import-export/replica-of/_index.md

@@ -9,6 +9,7 @@ description: Replica Of provides read-only access to replicas of the dataset fro
 hideListLinks: true
 linkTitle: Replica Of
 weight: $weight
+aliases: /operate/rs/administering/active-passive/
 ---
 In Redis Enterprise, the Replica Of feature provides active-passive geo-distribution to applications  for read-only access
 to replicas of the dataset from different geographical locations.
@@ -218,4 +219,4 @@ rladmin tune db <db:id | name> repl_backlog <Backlog size in MB or 'auto'>
 
 {{<note>}}
 On an Active-Passive database, the replication backlog configuration applies to both the replication backlog for shards synchronization and for synchronization of database instances between clusters.
-{{</note>}}
+{{</note>}}