popup.js.coffee in unpoly-rails-0.31.0

- old
+ new

@@ -371,9 +371,12 @@
 
       <a href="/decks" up-popup=".deck_list">Switch deck</a>
       <a href="/settings" up-popup=".options" up-sticky>Settings</a>
 
   @selector [up-popup]
+  @param {String} up-popup
+    The CSS selector that will be extracted from the response and
+    displayed in a popup overlay.
   @param [up-position]
     Defines where the popup is attached to the opening element.
 
     Valid values are `bottom-right`, `bottom-left`, `top-right` and `top-left`.
   @param {String} [up-confirm]