Fix typos in the Description section of 'Create QOS Spec' form under Admin->Volumes->Volume Type

[mariam john]

Under the Admin->Volumes->Volume Types panel, when we click the 'Create QOS Spec' button, the description section has few typos

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/122502

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/122502
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=4bf0a0a7c91f544d7b55dc94014a7c08288e1aaf
Submitter: Jenkins
Branch: master

commit 4bf0a0a7c91f544d7b55dc94014a7c08288e1aaf
Author: <email address hidden> <email address hidden>
Date: Thu Sep 18 15:03:49 2014 -0400

    Fixed typos in the QOS Spec forms in Volume Types

    Under Admin->Volumes->Volume Types, when we click the 'Create QOS
    Spec' button, the Description section mentions 'Manage' instead
    of 'Manage Specs'.

    Change-Id: Ide4691a79539f2cbf3f94d6f16887eb886f8e23d
    Closes-Bug: #1371249