From 8d8172644358ed6c7b8eed705b0d673a339ea429 Mon Sep 17 00:00:00 2001
From: Yury Delendik <ydelendik@mozilla.com>
Date: Fri, 28 Mar 2014 06:37:14 -0700
Subject: [PATCH] Updated Contributing (markdown)

---
 Contributing.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Contributing.md b/Contributing.md
index e8d795b..266ecdd 100644
--- a/Contributing.md
+++ b/Contributing.md
@@ -29,6 +29,13 @@ To fork the repository you'll need to sign up for a GitHub account. Once you hav
 git clone git://github.com/<YOUR USERNAME>/pdf.js.git
 ```
 
+and pull additional libraries/tools:
+```
+git submodule init
+git submodule update
+npm install
+```
+
 It's useful to have the upstream repository registered as well
 ```
 git remote add upstream git://github.com/mozilla/pdf.js.git