docs(dialog): correct and add back resolve property

src/components/dialog/dialog.js

@@ -536,6 +536,8 @@ function MdDialogDirective($$rAF, $mdTheming, $mdDialog) {
  *     `three` into the controller, with the value 3. If `bindToController` is true, they will be
  *     copied to the controller instead.
  *   - `bindToController` - `bool`: bind the locals to the controller, instead of passing them in.
+ *   - `resolve` - `{function=}`: Similar to locals, except it takes as values functions that return promises, and the	
+ *      dialog will not open until all of the promises resolve.
  *   - `controllerAs` - `{string=}`: An alias to assign the controller to on the scope.
  *   - `parent` - `{element=}`: The element to append the dialog to. Defaults to appending
  *     to the root element of the application.