Installation guide badly formatted

[ricardogsilva]

Current version of the UI install guide is hard to follow due to incorrect formatting and inclusion of git diff outputs in there.

I am referring to this document:

https://github.com/ceos-seo/data_cube_ui/blob/master/docs/ui/ui_install.md

These are a few of the problems with the document:

• broken hyperlinks on the table of contents
• git conflict outputs are present in the document
• badly formatted sections - everything after the sample apache conf file shows up as a code block