Change references from markdown to mdx (#534)

README.md

@@ -2,11 +2,11 @@
 
 [![CI](https://github.com/caulagi/blog/actions/workflows/ci.yml/badge.svg)](https://github.com/caulagi/blog/actions/workflows/ci.yml)
 
-Based on [`blog-starter`][blog-starter] and uses Next.js, Markdown, and TypeScript. The pages are statically generated at build time.
+The blog uses next.js, mdx, typescript, and tailwindcss. The pages are statically generated at build time.
 
-The blog posts are stored in `/_posts` as Markdown files with front matter support. Adding a new Markdown file in there will create a new blog post.
+The blog posts are stored in `/_posts` as mdx files with front matter support. Adding a new Markdown file in there will create a new blog post.
 
-To create the blog posts we use [`remark`][remark] and [`remark-html`][remark-html] to convert the Markdown files into an HTML string, and then send it down as a prop to the page. The metadata of every post is handled by [`gray-matter`][gray-matter] and also sent in props to the page.
+To create the blog posts we use [`remark`][remark] and [`remark-html`][remark-html] to convert the mdx files into an HTML string, and then send it down as a prop to the page. The metadata of every post is handled by [`gray-matter`][gray-matter] and also sent in props to the page.
 
 ## Getting started
 
@@ -23,7 +23,6 @@ Git commit history doesn't accurately reflect the history of the articles prior
 
 This project is licensed under [`MIT`](LICENSE).
 
-[blog-starter]: https://github.com/vercel/next.js/tree/canary/examples/blog-starter
 [remark]: https://github.com/remarkjs/remark
 [remark-html]: https://github.com/remarkjs/remark-html
 [gray-matter]: https://github.com/jonschlinkert/gray-matter