[DEV-1955] Change header link names.
[DEV-1955] Update help page copy.
[DEV-1955] Update FAQ page copy.
[DEV-1955] Add styles for h3.
[DEV-1955] Add section-title class to FAQ page header.
Merge pull request #43 from roverdotcom/DEV-1955

[DEV-1955] Update Help & FAQ page copy.