Merge pull request #609 from TomHAnderson/feature/banner

3.0 Use png banner

Author: TomHAnderson

README.md

@@ -1,6 +1,6 @@
 <p align="center">
  <img src="https://placehold.co/10x10/337ab7/337ab7.png" width="100%" height="15px">
- <img width="450px" src="https://github.com/laravel-doctrine/orm/blob/3.0.x/logo.svg"/>
+ <img width="450px" src="https://github.com/laravel-doctrine/orm/blob/3.0.x/docs/banner.png"/>
 </p>
 
 Laravel Doctrine ORM