s/sync/merge

docs/prop.md

@@ -4,6 +4,7 @@
 - [Static members](#static-members)
 	- [prop.combine](#prop-combine)
 	- [prop.reject](#prop-reject)
+	- [prop.merge](#prop-merge)
 	- [prop.HALT](#prop-halt)
 - [Instance members](#static-members)
 	- [stream.run](#stream-run)
@@ -85,6 +86,19 @@ Argument     | Type                 | Required | Description
 
 [How to read signatures](signatures.md)
 
+##### prop.merge
+
+Creates a stream whose value is the array of values from an array of streams
+
+`stream = m.prop.merge(streams)`
+
+Argument     | Type                 | Required | Description
+------------ | -------------------- | -------- | ---
+`streams`    | `Array<Stream>`      | Yes      | A list of streams
+**returns**  | `Stream`             |          | Returns a stream whose value is an array of input stream values 
+
+[How to read signatures](signatures.md)
+
 ##### prop.HALT
 
 A special value that can be returned to stream callbacks to halt execution of downstreams