Added a note about Singleshot to the readme.

README

@@ -1,12 +1,12 @@
- Intalio|Simplex
------------------
-
 Simplex is the main runtime for SimPEL, the Simple Process Execution
 Language. Simplex is lightweight and versatile, allowing deployment
 and redeployment of SimPEL processes on the fly while you edit them.
 It also knows a lot about HTTP and is generally built to make your 
 life easier.
 
-To learn more about SimPEL and Simple please visit:
+Singleshot is a task manager. You use it to track and complete your 
+tasks, processes use it to involve you.
+
+To learn more about SimPEL, Simplex and Singleshot please visit:
 
 http://oss.intalio.com