lower-case second word in this sentence.
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
Create User
===========
-Create a new user. By Default, a S3 key pair will be created automatically
+Create a new user. By default, a S3 key pair will be created automatically
and returned in the response. If only one of ``access-key`` or ``secret-key``
is provided, the omitted key will be automatically generated. By default, a
generated key is added to the keyring without replacing an existing key pair.