updated

Author: nitin42

docs/usage.md

@@ -94,7 +94,7 @@ Example -
 <Merge/>
 ```
 
-See the full api for `<Merge />` component [here]().
+See the full api for `<Merge />` component [here](https://github.com/nitin42/animate-components/blob/master/docs/api.md).
 
 ### Using CSS 
 You can also use minified copy of the css file which is available via cdn or you can manually download and specify the stylesheet.