Add npm badge; fix title & description (apache#26)

with some fixes as suggested by @janpio

Co-authored-by: Christopher Brody <chris.brody@gmail.com>
Co-authored-by: Jan P <janpio@users.noreply.github.com>

Author: Chris Brody

README.md

@@ -19,14 +19,17 @@
 #
 -->
 
-[![Build Status](https://travis-ci.org/apache/cordova-node-xcode.svg?branch=master)](https://travis-ci.org/apache/cordova-node-xcode)
+# cordova-node-xcode
 
-# node-xcode
+[![NPM](https://nodei.co/npm/xcode.png?compact=true)](https://nodei.co/npm/xcode/)
+[![Build Status](https://travis-ci.org/apache/cordova-node-xcode.svg?branch=master)](https://travis-ci.org/apache/cordova-node-xcode)
 
-> parser/toolkit for xcodeproj project files
+Parser utility for xcodeproj project files
 
 Allows you to edit xcodeproject files and write them back out.
 
+based on donated code from [alunny / node-xcode](https://github.com/alunny/node-xcode)
+
 ## Example
 
 ```js