Merge pull request #1437 from maxogden/patch-2

Add electron-prebuilt npm instructions to README

README.md

@@ -10,6 +10,17 @@ editor](https://github.com/atom/atom).
 Prebuilt binaries and debug symbols of Electron for Linux, Windows and Mac can
 be found on the [releases](https://github.com/atom/electron/releases) page.
 
+You can also use [`npm`](https://docs.npmjs.com/) to install prebuilt electron
+binaries:
+
+```
+# Install the `electron` command globally in your $PATH
+npm install electron-prebuilt -g
+
+# Install as a development dependency
+npm install electron-prebuilt --save-dev
+```
+
 ### Mirrors
 
 - [China](https://npm.taobao.org/mirrors/atom-shell)