Update README

Author: shmocz

README.md

@@ -8,10 +8,12 @@ Python interface for ra2yrcpp.
 
 Install a pre-built wheel:
 ```bash
-pip install -U https://github.com/shmocz/pyra2yr/releases/download/v0.2.0/pyra2yr-0.2.0-py3-none-any.whl
+pip install -U https://github.com/shmocz/pyra2yr/releases/download/v0.3.0/pyra2yr-0.3.0-py3-none-any.whl
 ```
 
-### (TODO) Method 2: Install with poetry
+### Method 2: Install with poetry
+
+TODO
 
 ## Setup
 
@@ -26,3 +28,26 @@ Download and extract [ra2yrcpp](https://github.com/shmocz/ra2yrcpp/releases/down
 ## Usage
 
 See `pyra2yr/examples/basic_usage.py` files for example usage.
+
+## Tests
+
+In a suitable python environment, run:
+
+```bash
+python -m unittest
+```
+
+Various environment variables are accepted:
+
+- `USE_SYRINGE` if defined, use Syringe instead of legacy spawner. Assumes `Syringe.exe` is in game data folder.
+- `USE_X11` (Linux only) Use host X server instead of VNC by exposing `/tmp/.X11-unix` to container.
+- `X11_SOCKET` (Linux only) is `USE_X11` is defined alternative path to X server socket.
+
+> [!NOTE]
+> Any value will enable a boolean setting, even values like `no`, `False` and `n`.
+
+For example:
+
+```bash
+USE_SYRINGE=y USE_X11=y python -m unittest
+```