Respond to review comments.

Author: MathiasVP

docs/pre-commit-hook-setup.md

@@ -1,13 +1,16 @@
 # CodeQL pre-commit-hook setup
 
-As stated in [CONTRIBUTING](../CONTRIBUTING.md) all CodeQL files must be formatted according to our [CodeQL style guide](ql-style-guide.md). You can use our pre-commit hook to avoid committing incorrectly formatted code. To use it, simply copy the [pre-commit](../misc/scripts/pre-commit) script to `.git/modules/ql/hooks/pre-commit` and make sure that it is executable.
+As stated in [CONTRIBUTING](../CONTRIBUTING.md) all CodeQL files must be formatted according to our [CodeQL style guide](ql-style-guide.md). You can use our pre-commit hook to avoid committing incorrectly formatted code. To use it, simply copy the [pre-commit](../misc/scripts/pre-commit) script to `.git/modules/ql/hooks/pre-commit` and make sure that:
+
+- The script is executable. On Linux and macOS this can be done using `chmod +x`.
+- The CodeQL CLI has in added to your `PATH`.
 
 The script will abort a commit that contains incorrectly formatted code in .ql or .qll files and print an error message like:
 
 ```
 > git commit -m "My commit."
-code/ql/cpp/ql/src/Options.qll would change by autoformatting.
-code/ql/cpp/ql/src/printAst.ql would change by autoformatting.
+ql/cpp/ql/src/Options.qll would change by autoformatting.
+ql/cpp/ql/src/printAst.ql would change by autoformatting.
 ```
 
 If you prefer to have the script automatically format the code (and not abort the commit), you can replace the line `codeql query format --check-only` with `codeql query format --in-place` (and `exit $exitVal` with `exit 0`).