Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -37,9 +37,9 @@ All should be pip installable.
 
 Venv:
 + If developing a [virtual environment](https://docs.python.org/3/library/venv.html) (recommended), use this command while in the environment to download all relevant dependencies
-+ ```python -m pip install pygame python-i18n importlib_resources typing_extensions```
++ ```python -m pip install pygame-ce python-i18n importlib_resources typing_extensions```
 + Or here's a one-liner to set up the virtual environment all at once
-+ ```python -m pip install pygame python-i18n importlib_resources typing_extensions sphinx sphinx_rtd_theme pytest pytest-cov pytest-benchmark ```
++ ```python -m pip install pygame-ce python-i18n importlib_resources typing_extensions sphinx sphinx_rtd_theme pytest pytest-cov pytest-benchmark ```
 
  Helpful checklist to go through before submitting a big pull request
  ====================================================================