docs: add link to style and formatting in env setup section (#8936)

Closes: #8653

docs/contribute/01_environment.qmd

@@ -205,6 +205,11 @@ For a better development experience see the `conda/mamba` or `nix` setup instruc
 
 :::
 
+## Code style and formatting
+
+Ibis uses several code linters and has a style guide for documentation, please
+checkout the [style and formatting guide](./03_style.qmd) for instructions on how to set things up.
+
 ## Building the docs
 
 Install [`just`](https://just.systems/man/en/chapter_4.html) (if you installed