* Flesh out our layouts to include header/footer components across layout types
* Update contribution.html
* Remove extra line that we don't need when we have the gray section
The files in this directory are "includes", snippets of HTML that can be
reused in multiple layouts or pages. In Ruby on Rails parlance, these are
called "partials".
Using Includes
This example injects the contents of includes/header.html into the
page: