Update README.md

Author: ebidel

README.md

@@ -22,7 +22,7 @@ Gut check your page to make sure it renders correctly for Google Search.
 
 <img width="500" alt="screen shot 2018-03-07 at 12 50 32 pm" src="https://user-images.githubusercontent.com/238208/37125450-804ad8c0-2221-11e8-8c96-7c5af582778f.png">
 
-### [lazyimages_without_scroll_events.js](./lazyimages_without_scroll_events.jss)
+### [lazyimages_without_scroll_events.js](./lazyimages_without_scroll_events.js)
 
 Determine if your lazy loaded images will be seen correctly by Google Search.