Merge pull request #77 from KadonWills/master

Update 4_quick-start.md

Author: BSN4

docs/4_quick-start.md

@@ -20,7 +20,7 @@ Where:
 -   You can track multiple kinds of visits to a single model using the tags as
 
 ```php
-visits($model,'tag1')->increment()
+visits($model,'tag1')->increment();
 ```
 
 ## Integration with any model