update README

README.md

@@ -17,5 +17,6 @@ Project layout:
 - `planetwars-server`: rust webserver
 - `planetwars-matchrunner`: code for running matches
 - `planetwars-rules`: implements the game rules
+- `planetwars-client`: for running your bot locally
 - `web/pw-server`: frontend
 - `web/pw-visualizer`: code for the visualizer

planetwars-client/README.md

@@ -0,0 +1,24 @@
+# planetwars-client
+
+`planetwars-client` can be used to play a match with your bot running on your own machine.
+
+## Usage
+
+First, create a config `mybot.toml`:
+
+```toml
+# Comand to run when starting the bot.
+# Argv style also supported: ["python", "simplebot.py"]
+command = "python simplebot.py"
+
+# Directory in which to run the command.
+# It is recommended to use an absolute path here.
+working_directory = "/home/user/simplebot"
+```
+
+Then play a match:  `planetwars-client /path/to/mybot.toml opponent_name`
+
+## Building
+- Obtain rust compiler through https://rustup.rs/ or your package manager
+- Checkout this repository
+- Run `cargo install --path .` in the `planetwars-client` directory