Drew's pre-launch polishing

- link logo to index.html
- remove “user guide” link from index.html
-make ul’s more apparent
-make links more apparent
-remove unneeded padding from title on about.html
-remove left/right margin from index.html that was making the page a
bit too wide
-make links on index.html link
-adjust issue with margin between sections on mobile and tablet.
-index.html content positioning adjustments
-update index.html copy
-adjust styling on mobile navigation