added 3.5 badge

Author: jsteemann

README.md

@@ -6,6 +6,8 @@ The official ArangoDB PHP Driver.
 3.2: [![Build Status](https://travis-ci.org/arangodb/arangodb-php.png?branch=3.2)](https://travis-ci.org/arangodb/arangodb-php)
 3.3: [![Build Status](https://travis-ci.org/arangodb/arangodb-php.png?branch=3.3)](https://travis-ci.org/arangodb/arangodb-php)
 3.4: [![Build Status](https://travis-ci.org/arangodb/arangodb-php.png?branch=3.4)](https://travis-ci.org/arangodb/arangodb-php)
+3.5: [![Build Status](https://travis-ci.org/arangodb/arangodb-php.png?branch=3.5)](https://travis-ci.org/arangodb/arangodb-php)
+devel: [![Build Status](https://travis-ci.org/arangodb/arangodb-php.png?branch=devel)](https://travis-ci.org/arangodb/arangodb-php)
 devel: [![Build Status](https://travis-ci.org/arangodb/arangodb-php.png?branch=devel)](https://travis-ci.org/arangodb/arangodb-php)
 
 - [Getting Started](docs/Drivers/PHP/GettingStarted/README.md)