update front end docs to clarify python and pip installation for prec…

…ommit

docs/SETUP/FRONT_END.md

@@ -22,7 +22,9 @@ Note: make sure to keep your fork up to date with the original repository by fol
 
 ### Precommit hook
 
-We use a precommit hook to help with formatting and linting in our CI/CD pipeline. When setting up the repo, please first [make sure you have `pre-commit` installed](https://pre-commit.com/) using `pip` or another package manager. Once that's done, run `pre-commit install` in the root directory to set up the precommit hooks (configured in `.pre-commit-config.yaml`).
+We use a precommit hook to help with formatting and linting in our CI/CD pipeline. When setting up the repo, please first [make sure you have `pre-commit` installed](https://pre-commit.com/) using `pip` or another package manager.\* Once that's done, run `pre-commit install` in the root directory to set up the precommit hooks (configured in `.pre-commit-config.yaml`).
+
+\*`pre-commit` relies on Python and is installed with `pip`. Python 3 ships by default on Unix systems (macOS and Linux) and `pip` is normally included in this. So, unless you're running Windows, both of these should already be accessible to you without any extra steps. If you're running Windows, see [the Python installation instrutions here](https://docs.python.org/3/using/windows.html).
 
 ### Nextjs App