Add docker

posts/golang/example-post.mdx

@@ -0,0 +1,12 @@
+---
+title: Example Post
+description: This frontmatter description will appear below the title
+---
+
+This is an example post, with a [link](https://nextjs.org) and a React component:
+
+<TestComponent name="next-mdx-remote" />
+
+The title and description are pulled from the MDX file and processed using `gray-matter`. Additionally, links are rendered using a custom component passed to `next-mdx-remote`.
+
+Go back [home](/).

posts/golang/hello-world.mdx

@@ -0,0 +1,5 @@
+---
+title: Hello World
+---
+
+This is an example post. There's another one [here](/posts/example-post).