#17 add task execution documentation

docs/task.md

@@ -42,7 +42,7 @@ to be executed successfully, its _definition_ **must** contain either a `request
 evaluate it and will ignore the `url` and the `method`. If a `requestPolicy` is missing in
 the _Task definition_, the task will execute an HTTP request to the given `url` with the
 given `method`. If both `requestPolicy` AND `url` and `method` are missing in the _Task definition_,
-the task cannot be executed. reference table:
+the task cannot be executed. Reference table:
 
 _Task definition_ contains: | `requestPolicy` only | `url` and `method` only | Both `requestPolicy` AND `url` and `method` | Neither
 --- | --- | --- | --- |---