Updated README.md.

README.md

@@ -1,3 +1,45 @@
 # yarrbox
 
-Configuration for docker-compose for my magic machine of goodies.
+Configuration tool for docker-compose for my magic machine of goodies.
+
+You need Python 3 installed, but you don't need any extra libraries.  This also
+assumes that you're using a recent version of Docker and Docker-Compose.
+
+This might work on macOS Docker, probably not Windows, but you can try I guess.
+I'm not sure why you would want to run this on anything other than a big ol'
+Linux server though.
+
+## Initial Setup
+
+First, generate your personal configuration.
+
+```sh
+./yarrbox.py init
+```
+
+(after this step isn't implemented yet)
+
+Next, generate the `docker-compose.yml` file.
+
+```sh
+./yarrbox.py generate
+```
+
+Then, you can launch everything, make sure to detach from them so you're not
+spammed with the output of all these programs.
+
+```sh
+sudo docker-compose up -d
+```
+
+## Extras
+
+You can edit the config with `./yarrbox.py edit`, you'll need to regenerate the
+config after.  And then all rules of thumb for editing Compose configs applies
+after that.  You might want to `down` the containers *just in case*.
+
+## Future work
+
+I'm more than welcome to accept patches to support Kodi.  I'm planning on
+migrating to that in the future.  The config tool isn't as advanced to support
+different/multiple distribution frontends so you'll have to do that yourself.