Add collectstatic commands to install doc

Added directions on how to run collectstatic and compress as part of the
install process.  Fixing obvious typos as well.

Change-Id: Ia51bb7bb644dc213b3ec3fd3866633700a73c7f9
Closes-Bug: 1392804
Imported Translations from Transifex

For more information about this automatic import see:
https://wiki.openstack.org/wiki/Translations/Infrastructure

Change-Id: I11e2dc4721629e212fba0dab94ddcc1e17568d0b
Merge "Add collectstatic commands to install doc"