fixes serverstatus.metrics.connections.loadBalanced build error (#439)

Author: jmd-mongo

source/release-notes/5.3.txt

@@ -34,7 +34,7 @@ Starting in MongoDB 5.3, you can:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 Starting in MongoDB 5.3, :dbcommand:`serverStatus` includes 
-:serverstatus:`metrics.connections.loadBalanced` which reports the 
+:serverstatus:`connections.loadBalanced` which reports the 
 number of incoming connections received through a load balancer.
 
 Security