Improve wording in glance instructions
Improve wording in glance instructions

The landing page has a column for what to do
with glance images. It only talks about launching
with nova or horizon, but the glance section will
host images to be used with murano, heat, sahara,
etc., so this commit slightly modifies the
language to indicate that.

Change-Id: Icc341021efdcac7de7c025f7ea0a850adc93a67f

shayn1234/apps-catalog,shayn1234/apps-catalog,stackforge/apps-catalog,stackforge/apps-catalog,shayn1234/apps-catalog,stackforge/apps-catalog,stackforge/apps-catalog,shayn1234/apps-catalog