add local development instructions to README

README.md

@@ -2,18 +2,27 @@
 
 Planetwars is a competitive programming game. You implement a bot that will be pitted against all other bots.
 
-You can try it out at https://planetwars.dev
+Try it out at https://planetwars.dev !
 
-current features:
+Current features:
-- write your bot in python
+- write and publish a python bot in the demo web interface
-- save your bot so that others can play against it
+- develop a bot locally and publish it as a docker container
-- saved bots are automatically ranked in the background.
+- published bots will be ranked in the background
 
 
-At the moment only python is supported, but a more generic docker-based system is in development.
+## Creating a bot locally
+For development, you can play a game with a locally running bot using [`planetwars-client`](https://github.com/iasoon/planetwars.dev/tree/main/planetwars-client). \
+Once you are happy with your bot, you can publish it to the planetwars server as a docker container.
+
+1. Register your bot. In order to publish a bot version, you first have to register a bot name. You can do this by navigating to your profile after logging in (click your name in the navbar).
+2. Bake your bot into a docker container. If you'd like to test whether your container works, you can try running it using `planetwars-client` by using `docker run -it my-bot-tag` as the run command.
+3. Log in to the planetwars docker registry: `docker login registry.planetwars.dev`
+4. Tag and push your bot to `registry.planetwars.dev/my-bot-name:latest`.
+5. Your bot should be up and running now! Feel free to play a game against  it to test whether all is well. Shortly, your bot should appear in the rankings.
 
 
-Project layout:
+## Project
+The repository contains these components:
 - `planetwars-server`: rust webserver
 - `planetwars-matchrunner`: code for running matches
 - `planetwars-rules`: implements the game rules