DOCSP-33551 fix typo (#5234)

Author: kanchana-mongodb

source/tutorial/manage-data-sharding.txt

@@ -91,7 +91,7 @@ Change when Sharded Cluster Balancer Runs
 You can use |mms| to set when your sharded cluster
 :manual:`balances data across shards </core/sharding-balancer-administration>`.
 
-Each sharded cluster has a process called a balancer thatthat works to ensure an :manual:`even distribution of chunks across each shard </core/sharding-balancer-administration>`.
+Each sharded cluster has a process called a balancer that works to ensure an :manual:`even distribution of chunks across each shard </core/sharding-balancer-administration>`.
 Migrating chunks across your sharded cluster *can* impact performance. Balancer efficiency depends upon
 :manual:`shard key selection <choosing-a-shard-key>`.
 Use the |mms| Balancer manager interface to set specific windows