update link to documentation

README.md

@@ -1,7 +1,7 @@
 # A Blank Template for Open Web Apps
 
 This is a minimal template that has a little HTML, CSS, and JavaScript to help
-you start writing an [Open Web App](https://developer.mozilla.org/en-US/docs/Web/Apps).
+you start writing an [Open Web App](https://developer.mozilla.org/en-US/Apps).
 
 This is part of the [mortar](https://github.com/mozilla/mortar/)
 template collection for building Open Web Apps.