adding a simple readme and fixing the theme reference

@jamilbk actually you can just keep both lines uncommented to work for github pages and locally 😅

docs/README.md

@@ -0,0 +1,13 @@
+# Firezone Docs
+
+## Overview
+
+This repository is for our documentation website found at https://docs.firez.one/. 
+
+## Contributing
+
+We uses pages to organize our documentation. Please see the [Jekyll site](https://jekyllrb.com/docs/pages/) for more information.
+
+### Setup
+
+We are using [Jekyll](https://jekyllrb.com/docs/) to generate the site and [Github Pages](https://pages.github.com/) to host it. When developing locally, you can use the [`jekyll serve`](https://jekyllrb.com/docs/serving-jekyll/) command to start a server from the `/docs` directory.

docs/_config.yml

@@ -33,7 +33,7 @@ logo: "/assets/images/firezone-logo-wordmark-dark.svg"
 
 # Build settings
 remote_theme: pmarsceill/just-the-docs
-# theme: just-the-docs # for local development
+theme: just-the-docs
 color_scheme: fz
 
 # Footer content