Update README.md

Updating readme to add link to GitHub pages documentation.

Author: Greg Meyer

README.md

@@ -1,2 +1,4 @@
 # dns
-Direct Java RI DNS Service
+The DNS services implement a simple authoritative only DNS server for hosting DNS records for a Direct messaging domain. It is intentionally tuned to handle only certain type of DNS records including CERT type records as defined by the DirectProfject [specification](http://wiki.directproject.org/w/images/e/e6/Applicability_Statement_for_Secure_Health_Transport_v1.2.pdf).
+
+Full documentation can be found [here](https://directprojectjavari.github.io/dns/).