adding readme info

Author: John Hutcheson

README.md

@@ -11,7 +11,7 @@ There are two ways you can include this library in you project. One is through C
 For Composer run:
 
 ```php
-composer require jhut89/mailchimp3php
+composer require jhut89/mailchimp3php:dev-master
 ```
 
 Then run `composer install` and add composer autoloader to your project with:

composer.json

@@ -11,7 +11,6 @@
     "autoload":{
         "files": ["src/mailchimpRoot.php"]
     },
-    "version":"dev-master",
     "require": {
         "php": ">=5.3.0"
     },