docs(ngView): add param info

Closes angular#5734
Closes angular#5741

Author: Gias Kay Lee

src/ngRoute/directive/ngView.js

@@ -26,6 +26,14 @@ ngRouteModule.directive('ngView', ngViewFillContentFactory);
  *
  * @scope
  * @priority 400
+ * @param {string=} onload Expression to evaluate whenever the view updates.
+ *
+ * @param {string=} autoscroll Whether `ngView` should call {@link ng.$anchorScroll
+ *                  $anchorScroll} to scroll the viewport after the view is updated.
+ *
+ *                  - If the attribute is not set, disable scrolling.
+ *                  - If the attribute is set without value, enable scrolling.
+ *                  - Otherwise enable scrolling only if the expression evaluates to truthy value.
  * @example
     <example module="ngViewExample" deps="angular-route.js" animations="true">
       <file name="index.html">