Updated BridgeAbstract (markdown)

BridgeAbstract.md

@@ -114,8 +114,8 @@ For more details on the `collectData` function refer to [these instructions](The
 
 Use this template to create your own bridge. Please remove any unnecessary comments and parameters.
 
-```PHP
-<?PHP
+```php
+<?php
 class MyBridge extends BridgeAbstract {
 	const NAME = 'Unnamed bridge';
 	const URI = '';