update description

README.md

@@ -7,8 +7,13 @@ digd.js
 | **digd.js**
 | Sponsored by [Daplie](https://daplie.com).
 
-A lightweight DNS / mDNS daemon (server) for creating and capturing DNS and mDNS
-query and response packets to disk as binary and/or JSON.
+A lightweight DNS / mDNS daemon (server) in node.js.
+
+Although originally created for testing dns-suite.js
+by creating and capturing to disk DNS and mDNS query
+and response packets (as binary and/or JSON), digd.js
+has grown into a full-blown nameserver.
+
 Options are similar to the Unix dig command.
 
 Install