Tags Interface for official themes

[ChristopherBiscardi]

Summary

Blog Posts usually have tags and we've included support for tags and keywords in the official blog theme.

Basic example

In the default MDX content format we use in the official themes, the implementation would come out to defining tags like this:

---
tags: [gatsby, gatsby-themes]
---

Some blog post

Where the proxy type MdxBlogPost would also implement Tag:

interface Tag @nodeInterface {
  title: String!
  descriptions: String!
}

Motivation

People like to organize stuff into different topics. Should this be an extension to core? how would we achieve that? Should this be natively implemented by gatsby-theme-blog-core and gatsby-theme-notes-core? Why?