minor: unsaved file clean up

Author: Sam Kleinman

source/tutorial/add-shards-to-shard-cluster.txt

@@ -38,7 +38,8 @@ shards. You can do this using the :dbcommand:`addShard` command:
 
    db.runCommand( { addShard: mongodb0.example.net, name: "mongodb0" } )
 
-Optionally you can use the :func:`sh.addShard()` helper:
+Or you can use the :func:`sh.addShard()` helper in the
+:program:`mongo` shell:
 
 .. code-block:: javascript
 

source/tutorial/deploy-shard-cluster.txt

@@ -122,6 +122,8 @@ in the :program:`mongo` shell session:
    sh.addShard( "shard0.example.net" )
    sh.addShard( "shard1.example.net" )
 
+.. admonition:: All shards should be replica sets.
+
    .. versionchanged:: 2.0.3
 
    After version 2.0.3, you may use the above form to add replica