The Accessibility Boilerplate is a basic HTML template to kickstart your web project responsibly.
The boilerplate aims to provide a sensible default template, using plain old semantic markup, to correctly structure your content, making it easily accessible by search engines and assistive technologies. This project therefore uses HTML5 syntax enhanced with ARIA roles and Microdata. The best way to get started is to simply jump into the index.html code.
For best practices on other common files and configurations have a look at html5-boilerplate.