Documentation update

README.md

@@ -7,6 +7,8 @@ websites that demand javascript support and also supports screen captures.
 
 [Full Documentation](http://jonnnnyw.github.io/php-phantomjs/)
 
+[![Total Downloads](https://poser.pugx.org/jonnyw/php-phantomjs/downloads.png)](https://packagist.org/packages/jonnyw/php-phantomjs) [![Latest Stable Version](https://poser.pugx.org/jonnyw/php-phantomjs/v/stable.png)](https://packagist.org/packages/jonnyw/php-phantomjs) [![Build Status](https://travis-ci.org/jonnnnyw/php-phantomjs.png?branch=master)](https://travis-ci.org/jonnnnyw/php-phantomjs) [![Scrutinizer Quality Score](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/badges/quality-score.png?s=631d32fa1fbb9300eb84b9b52702c7ffeac046a1)](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/) [![Code Coverage](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/badges/coverage.png?s=893b5997da45448e32983b8568a39630b0b2d91b)](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/)
+
 Feature List
 ---------------------
 
@@ -21,4 +23,8 @@ Feature List
 * Execute PhantomJS with command line options
 * Easily build and run custom PhantomJS scripts
 
-[![Total Downloads](https://poser.pugx.org/jonnyw/php-phantomjs/downloads.png)](https://packagist.org/packages/jonnyw/php-phantomjs) [![Latest Stable Version](https://poser.pugx.org/jonnyw/php-phantomjs/v/stable.png)](https://packagist.org/packages/jonnyw/php-phantomjs) [![Build Status](https://travis-ci.org/jonnnnyw/php-phantomjs.png?branch=master)](https://travis-ci.org/jonnnnyw/php-phantomjs) [![Scrutinizer Quality Score](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/badges/quality-score.png?s=631d32fa1fbb9300eb84b9b52702c7ffeac046a1)](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/) [![Code Coverage](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/badges/coverage.png?s=893b5997da45448e32983b8568a39630b0b2d91b)](https://scrutinizer-ci.com/g/jonnnnyw/php-phantomjs/)
+
+Upgrading From v2.*
+---------------------
+
+If you are using a version of PHP PhantomJS prior to version v3.0.0 then you should note that there have been some major changes to the interface. Please view the [Full Documentation](http://jonnnnyw.github.io/php-phantomjs/) as a guide when upgrading your implementation.