minor: typo fix

Author: Sam Kleinman

aspiration/use-cases/cms-metadata-and-asset-management.txt

@@ -475,16 +475,16 @@ Use the following operation at the Python/PyMongo shell:
    >>> db.command('shardcollection', 'cms.assets.files', {
    ...     key : { 'metadata.section': 1, 'metadata.slug' : 1 } })
 
-To shard the ``cms.assetsf.chunks`` collection, you must use the
+To shard the ``cms.assets.chunks`` collection, you must use the
 ``_id`` field as the :term:`shard key`. The following operation will
-shard the collection:
+shard the collection
 
 .. code-block:: pycon
 
    >>> db.command('shardcollection', 'cms.assets.chunks')
 
 If you do not specific a shard key, when using the
 :dbcommand:`shardcollection` command, MongoDB will shard based on the
-``_id`` field. This also ensures routable queries becasue all reads
+``_id`` field. This also ensures routable queries because all reads
 from GridFS must first look up the document in ``cms.assets.files``
 and then look up the chunks separately.