Comment 2 for bug 1587164

Reviewed: https://review.openstack.org/322970
Committed: https://git.openstack.org/cgit/openstack/rally/commit/?id=58e861ac0ef6aa3a6704e3ce3f36c09cff821675
Submitter: Jenkins
Branch: master

commit 58e861ac0ef6aa3a6704e3ce3f36c09cff821675
Author: Tom Patzig <email address hidden>
Date: Mon May 30 21:21:48 2016 +0200

    Fixed syntax in share_networks example comment

    The comment shows how to use manila_share_networks context in tasks.
    The syntax in this example for the project-share_network mapping was
    wrong.
    This patch fixes the syntax of the share_network mapping example
    and shows where to be placed inside of 'context'.

    Change-Id: I6e58be0598790e87f087d20128f764f9efb7efef
    Closes-Bug: #1587164