Update source/administration/ssl.txt

Author: milkie

source/administration/ssl.txt

@@ -209,8 +209,8 @@ To connect to a replica set via SSL, use the following form:
 .NET
 ~~~~
 
-As of release 1.6 of the .NET driver supports SSL connections with
-:program:`mongod` an :program:`mongos` instances. To connect using
+As of release 1.6, the .NET driver supports SSL connections with
+:program:`mongod` and :program:`mongos` instances. To connect using
 SSL, you must add an option to the connection string, specifying
 ``ssl=true`` as follows: