update README for npm 2.14.7

Author: beevelop

README.md

@@ -2,7 +2,7 @@
 
 # Android with Node.js based on [beevelop/android](https://github.com/beevelop/docker-android)
 - Node.js 4.2.0
-- npm 2.14.3
+- npm 2.14.7
 
 ## Disclaimer
 > This is experimental and might break from time to time. Use at your own risk!