Mention eslint-plugin-ava in the common pitfalls docs (#1022)

Author: jfmengels

docs/common-pitfalls.md

@@ -2,6 +2,10 @@
 
 Translations: [Français](https://github.com/avajs/ava-docs/blob/master/fr_FR/docs/common-pitfalls.md)
 
+## ESLint plugin
+
+If you use [ESLint](http://eslint.org/), you can install [eslint-plugin-ava](https://github.com/avajs/eslint-plugin-ava). It will help you use AVA correctly and avoid some common pitfalls.
+
 ## AVA in Docker
 
 If you run AVA in Docker as part of your CI, you need to fix the appropriate environment variables. Specifically, adding `-e CI=true` in the `docker exec` command. See [#751](https://github.com/avajs/ava/issues/751).