From 7654c991df7a2773b6d3ea471ac30098883fa818 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=96=9B=E5=AE=9A=E8=B0=94=E7=9A=84=E7=8C=AB?=
 <hh_2013@foxmail.com>
Date: Mon, 9 Oct 2017 21:16:59 -0500
Subject: [PATCH] Docs: add installing prerequisites in readme. (#9401)

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index 2f0f1648e13..62dc2a657dc 100644
--- a/README.md
+++ b/README.md
@@ -27,6 +27,8 @@ ESLint is a tool for identifying and reporting on patterns found in ECMAScript/J
 
 ## Installation and Usage
 
+Prerequisites: [Node.js](https://nodejs.org/en/) (>=4.x), npm version 2+.
+
 There are two ways to install ESLint: globally and locally.
 
 ### Local Installation and Usage