[Openstack-i18n] Virtual Machine Image Guide RST conversion finished

Hi team, Sorry for late announce. Virtual Machine Image Guide RST conversion has finished. You can look at new translation resource at Zanata: openstack-manuals/image-guide (same name) Unfortunatelly, we has droped the translations with XML markup, which is replaced with RST markup. However, we can easily translate them from Zanata translation memory. Tips: The strings ":guilabel:`xxxx`" is needed to keep this structure. :guilabel:`[yourlanguage]` This is a kind of RST markup. Best Regards, KATO Tomoyuki