DOCSP-19004 cleaning up error that was causing build error

Author: ianf-mongodb

source/release-notes/5.1.txt

@@ -134,11 +134,11 @@ determines whether the temporary documents required for :ref:`retryable
 <retryable-writes>` :dbcommand:`findAndModify` commands are stored in
 the *side* collection (``config.image_collection``).
 
-``Mongod`` Sharded Cluster And Config Server Changes
+``mongod`` Sharded Cluster And Config Server Changes
 ----------------------------------------------------
 
 Starting in MongoDB 5.1, when starting a :binary:`mongod` with the 
-:option:`--configsvr <mongod--configsvr>` option you must also
+:option:`--configsvr <mongod --configsvr>` option you must also
 specify a :option:`--replSet <mongod --replSet>`.
 
 Starting in MongoDB 5.1, when starting a :binary:`mongod` with the