message: Fix a typo in ROADMAP
diff: @@ -13,7 +13,7 @@ Once a step is completed, it is collapsed and added to this list:
  * [x] Scrollables / Clippables ([#24])
  * [x] Text input widget ([#25])
  * [x] TodoMVC example ([#26])
  - * [x] Async actions ([#27])
  + * [x] Async actions ([#28])
  * [x] Custom layout engine ([#52])
  * [x] Event subscriptions ([#122])
  * [x] Custom styling ([#146])
  