Q: Metadata Feature in Habitat Sitecore I am working on applying the Helix Design Principles in an existing Sitecore project. One thing that I haven't been able to understand was the Metadata Feature. 
I used Sitecore Habitat and searching through Google as a reference but haven't been able to understand it there as well. I haven't been able to find a detailed resource/documentation to learn more about what it does, how it works and how I would implement it to a currently existing project.
I'm sure this is a really broad question but any help would be appreciated. 

A: Metadata will add tags to your page header section 
ex
<title>site name</title>
<meta name="description" content="Description"/>

this will help you with seo 
to implement it you need to add PageMetadata to your page base template and siteMetadata to your site base template, and add PageMetadata view to placeholder in your layout header tag 
