Update 1.4.0.md

Author: danielgerlag

ReleaseNotes/1.4.0.md

@@ -20,12 +20,15 @@ The JSON format defines the steps within the workflow by referencing the fully q
 
 | Field                   | Description                 |
 | ----------------------- | --------------------------- |
-| Id                    | Workflow Definition ID        |
-| Version               | Workflow Definition Version   |
-| DataType              | Fully qualified assembly class name of the custom data object   |
-| Steps[].Id            | Step ID (required unique key for each step)                     |
-| Steps[].StepStepType  | Fully qualified assembly class name of the step                 |
-| Steps[].NextStepId    | Step ID of the next step after this one completes               |
+| Id                      | Workflow Definition ID        |
+| Version                 | Workflow Definition Version   |
+| DataType                | Fully qualified assembly class name of the custom data object   |
+| Steps[].Id              | Step ID (required unique key for each step)                     |
+| Steps[].StepStepType    | Fully qualified assembly class name of the step                 |
+| Steps[].NextStepId      | Step ID of the next step after this one completes               |
+| Steps[].Inputs          | Optional Key/value pair of step inputs                          |
+| Steps[].Outputs         | Optional Key/value pair of step outputs                         |
+| Steps[].CancelCondition | Optional cancel condition                                       |
 
 ```json
 {
@@ -69,12 +72,12 @@ Full details of the capabilities of  expression language can be found [here](htt
       "StepType": "MyApp.AddNumbers, MyApp",
       "NextStepId": "Bye",
       "Inputs": { 
-		"Value1": "data.Value1",
-		"Value2": "data.Value2" 
-	  },
+          "Value1": "data.Value1",
+          "Value2": "data.Value2" 
+       },
       "Outputs": { 
-		"Answer": "step.Result" 
-	  }
+          "Answer": "step.Result" 
+      }
     },    
     {
       "Id": "Bye",