From 386fda134e66df9044b9304c46154b5f9aa47225 Mon Sep 17 00:00:00 2001
From: Romain Vigier <romain@romainvigier.fr>
Date: Fri, 14 Feb 2020 01:54:59 +0100
Subject: [PATCH] Update README with Contributing

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index c6f75ff..ed58a71 100644
--- a/README.md
+++ b/README.md
@@ -51,3 +51,22 @@ Restart your GNOME session and enable the extension:
 ```bash
 gnome-extensions enable nightthemeswitcher@romainvigier.fr
 ```
+## Contributing
+
+You're welcome to contribute to the code!
+
+Please follow the coding style of each file. If you make changes to a file, please add your copyright notice at the top of the file, in the form `Copyright (C) YEAR Your Name`.
+
+If you add support for a theme, please write a unit test for each of its variants, in the `tests` directory, with the theme name as filename. Unit tests are written for [AVA](https://github.com/avajs/ava) and run with node and npm.
+
+To install the tests dependencies:
+
+```bash
+npm install
+```
+
+To run the tests:
+
+```bash
+make test
+```