[wip] Update

README.md

@@ -106,11 +106,25 @@ python -m scripts/run_generative.py \
 ```
 
 
-## Testing
+## Testing and Development
 
 This codebase contains minimal tests, mostly we test functions that were added or patched from RewardBench.
 First, you need to install all the development dependencies:
 
 ```sh
 pip install -r requirements-dev.txt
+```
+
+Then, you can run the tests by:
+
+```sh
+pytest tests/
+pytest tests/ -m "not api"  # to ignore tests that make use of third-party APIs
+```
+
+When developing, we format the code using [black](https://black.readthedocs.io/en/stable/index.html) and [isort](https://pycqa.github.io/isort/), to be consistent with the RewardBench codebase.
+You can automatically format your code by running:
+
+```
+make style
 ```