fix url for presets link (#796)

Author: serpilacar

markdowns/foundation/style.md

@@ -8,7 +8,7 @@ We use basic style presets to define the rules and the style guide we follow.
 
 Our presets includes: **Colors**, **Typography**, **Shadows**, **Border Radius** and more..
 
-The UILib already comes with a set of predefined constants and [presets](../tree/master/src/style).
+The UILib already comes with a set of predefined constants and [presets](https://github.com/wix/react-native-ui-lib/tree/master/src/style).
 
 You can easily use it anywhere in your code as you would have used any other constant value, or as a component modifier.