improved documentation in READEME

README.md

@@ -7,3 +7,9 @@ The initial design does not aim to be a 24/7 paging sytem. Rather
 * But don't email too often afterwards (once a day to once an hour)
 
 If a script in the directory returns non-zero, the output sent by the script (in standard output) will be printed and sent by email.
+
+Thus, the required design for adding monitoring features is simple:
+* If no error or warning, return 0
+* If there is an error or warning, return non zero and print message to standard output
+
+The name dumuzid comes from the Sumerian diety of the same name, "Dumuzid the Shepherd".