According to "code conventions" [1], do not use "-y" option.
Instead, use apt-get install package, yum install package,
or zypper install package.
[1] https://docs.openstack.org/doc-contrib-guide/writing-style/
code-conventions.html
Change-Id: I174c8a0c653e322bbf951d72445b1a43251baa7e
This patch set makes the following changes:
* Add index file to each subdirectory of doc/source
* Update doc/source/index.rst with new links
* Move content of install-guide to the doc/source/install
* Minor changes
Depends-On: Ifc5512c0e2373cf3387e0e0498268eab092e52bb
Change-Id: Iecb4f60efb015a56b9b37331859848b287112842
