update README

README.md

@@ -11,7 +11,7 @@ It is a port of [shadowsocks](https://github.com/shadowsocks/shadowsocks)
 created by [@clowwindy](https://github.com/clowwindy) maintained by 
 [@madeye](https://github.com/madeye) and [@linusyang](https://github.com/linusyang).
 
-Current version: 2.0.4 | [![Build Status](https://travis-ci.org/shadowsocks/shadowsocks-libev.png?branch=master)](https://travis-ci.org/shadowsocks/shadowsocks-libev) | [Changelog](Changes)
+Current version: 2.0.5 | [![Build Status](https://travis-ci.org/shadowsocks/shadowsocks-libev.png?branch=master)](https://travis-ci.org/shadowsocks/shadowsocks-libev) | [Changelog](Changes)
 
 Features
 --------
@@ -232,7 +232,7 @@ usage:
                                      not available in redir mode
           [-L <addr>:<port>]         setup a local port forwarding tunnel,
                                      only available in tunnel mode
-          [-d <addr>]                setup the name servers for libudns,
+          [-d <addr>]                setup name servers for internal DNS resolver,
                                      only available in server mode
           [-v]                       verbose mode
 

src/utils.c

@@ -242,7 +242,7 @@ void usage()
     printf(
         "                                     only available in tunnel mode\n");
     printf(
-        "          [-d <addr>]                setup the name servers for libudns,\n");
+        "          [-d <addr>]                setup name servers for internal DNS resolver,\n");
     printf(
         "                                     only available in server mode\n");
     printf(