Updated FAQ to be more clear about where checks exist or are defined
Update api.md

Broken installation guide link
Fixed a typo in overview.md
Fixed a typo in checks.md

Fixed a small typo
typo
Merge pull request #108 from notnmeyer/master

Typo
Merge pull request #107 from simondean/patch-2

Fixed a typo in checks.md
Merge pull request #106 from simondean/patch-1

Fixed a typo in overview.md
Merge pull request #102 from vadzimt/patch-1

Update api.md
Merge pull request #100 from solarkennedy/defined_faq

Updated FAQ to be more clear about where checks exist or are defined