Move the auto-formatting section under the Setup section, and expand it a bit

README.md

@@ -2,6 +2,7 @@
 
 [![Task Status](https://github.taskcluster.net/v1/repository/mozilla/bugbug/master/badge.svg)](https://github.taskcluster.net/v1/repository/mozilla/bugbug/master/badge.svg)
 
+
 ## Classifiers
 - **assignee** - The aim of this classifier is to suggest an appropriate assignee for a bug.
 
@@ -38,12 +39,17 @@
 
 Run `pip install -r requirements.txt` and `pip install -r test-requirements.txt`
 
+### Auto-formatting
+
+This project is using [pre-commit](https://pre-commit.com/). Please run `pre-commit install` to install the git pre-commit hooks on your clone.
+
+Every time you will try to commit, pre-commit will run checks on your files to make sure they follow our style standards and they aren't affected by some simple issues. If the checks fail, pre-commit won't let you commit.
+
 
 ## Usage
 
 Run the `run.py` script to perform training / classification. The first time `run.py` is executed, the `--train` argument should be used to automatically download databases containing bugs and commits data.
 
-
 ### Running the repository mining script
 
 1. Clone https://hg.mozilla.org/mozilla-central/.
@@ -73,9 +79,3 @@ Note: the script will take a long time to run (on my laptop more than 7 hours).
 - `bugbug/nlp` contains utility functions for NLP;
 - `bugbug/labels.py` contains utility functions for handling labels;
 - `bugbug/bug_snapshot.py` contains a module to play back the history of a bug.
-
-## Auto-formatting setup
-
-This project is using [pre-commit](https://pre-commit.com/). Please run `pre-commit install` to install the git pre-commit hooks on your clone.
-
-Then every time you will try to commit, it will check that the files are correctly formatted before letting you commit.