FLUID-5515: Edits to text
Merge remote-tracking branch 'acheetham/FLUID-5515' into FLUID-5451
Merge remote-tracking branch 'jon/FLUID-5451' into FLUID-5515
FLUID-5451: Styling and layout fixes
- fixed header title and front matter
- validated HTML
- removed unused icon placeholders
- added community links as a list
Merge remote-tracking branch 'acheetham/FLUID-5515' into FLUID-5451