Update faq.rst
Update faq.rst

A couple of suggested modifications primarily to clarify that this unordered list is of **options** to install the latest version―not a series of commands to complete a single install. Also suggested a layout change to explain the series of commands in option b.
ibmibmibm/beets,ibmibmibm/beets,ibmibmibm/beets,sampsyo/beets,beetbox/beets,shamangeorge/beets,shamangeorge/beets,sampsyo/beets,ibmibmibm/beets,beetbox/beets,shamangeorge/beets,sampsyo/beets,sampsyo/beets,shamangeorge/beets,beetbox/beets,beetbox/beets