Broken link in OpenStack Compute Administration Manual: Managing Volumes

Manual "OpenStack Compute Administration Manual" in section "Managing Volumes" (see http://docs.openstack.org/trunk/openstack-compute/admin/content/managing-volumes.html) the hyperlink aimed to point to a script for making volume backup is broken.

For finding the exact point seek for sentence "This script here will assist you on this task." in sub-section named "6- Automate your backups".

The right hyperlink should be the following: https://github.com/Razique/BashStuff/tree/master/SYSTEMS/OpenStack as reported here http://www.gossamer-threads.com/lists/openstack/dev/12741 (see second message in the thread).

Hint: it would be nice to have such a script reported in some Appendix of this document. The risk I see is that in the future the script is updated in GitHub and not in the document.