Minor: fix choice workflow example

Author: grussorusso

examples/workflow-with-choice-task.json

@@ -22,7 +22,7 @@
             "Next": "BranchTwoSecondState"
           }
         ],
-        "Default": "FinalBranchOne"
+        "Default": "FailState"
       },
       "BranchOneSecondState": {
         "Comment": "The second task of the first branch",
@@ -53,6 +53,11 @@
         "Type": "Task",
         "Resource": "inc",
         "End": true
-      }
+      },
+      "FailState": {
+	"Type": "Fail",
+	"Error": "ErrorA",
+	"Cause": "Unknown"
+	}
     }
   }