Hello from the minimal http server + mimetypes example.
This shows how to teach a mount new bindings between file
suffix and mimetype used to serve it.

Lws has a bunch of built-in ones, but you can add as many
as you like when defining the mount.

For example, lws doesn't know the suffix [.tar].bz2
implies the mimetype application/x-bzip2, but we taught
this mount about that relationship in the example code, so it
knows how to serve this example test.tar.bz2.