Update README.md

horike37 · web-flow · commit bc1e98445b21 · 2017-02-18T20:17:30.000+09:00
diff --git a/README.md b/README.md
@@ -43,7 +43,7 @@ stepFunctions:
           Type: Task
           Resource: myTask
           End: true
-  activities
+  activities:
     - myTask
     - yourTask
 ```
