#27345 improved note about collection option to MongoDbStore, updated usage of must

Author: Joe Bennett

components/lock.rst

@@ -327,7 +327,7 @@ MongoDB Connection String:
 .. note::
 
     The ``collection`` querystring parameter is not part of the `MongoDB Connection String`_ definition.
-    It is simply used to allow constructing a ``MongoDbStore`` using a `Data Source Name (DSN)`_ without ``$options``.
+    It is used to allow constructing a ``MongoDbStore`` using a `Data Source Name (DSN)`_ without ``$options``.
 
 .. _lock-store-pdo:
 
@@ -617,7 +617,7 @@ MongoDbStore
     collection. Beware that in MongoDB an indexed field's value can be
     `a maximum of 1024 bytes in length`_ inclusive of structural overhead.
 
-A TTL index MUST BE used to automatically clean up expired locks.
+A TTL index must be used to automatically clean up expired locks.
 Such an index can be created manually:
 
 .. code-block:: javascript