inserted top paragraph

README.md

+# Short description of Repository
+
+What needs to be changed (partly optional):
+- sm/so/service_orchestrator.py -> STG_FILE
+- bundle/wsgi/so.py -> os_image, ssh_key
+- bundle/data/cluster.yaml -> "default" at master_flavor, slave_flavor; network under hadoop_router; floating_network under hadoop_ip (latter two are the name of the public network)
+- etc/sm.cfg -> manifest, design_uri
+
+Below is the pasted command introduction to Service Orchestrators from the Sample SO page mentioned in the Wiki.
+
 # Testing SO without deploying it using CC
 
 Goto the directory of mcn_cc_sdk & setup virtenv (Note: could be done easier):