Change todo list and main name of project.

Hello SD,

I change main name of project from "SDSubcribe" to "SDSubscribe". README.md changes details in order to provide task develop program. As Follow steps for develop message services.
 
- [ ]  Database pool connected by DBPC library that call MongoDB and CouchDB.
- [ ]  Send Message from message service to Map service.

Feel Free if you have questions.
Rch.