Update README for PR #117

Author: shawn1m

README.md

@@ -128,7 +128,7 @@ IPv6). Overture will handle both TCP and UDP requests. Literal IPv6 addresses ar
 + DNS: You can specify multiple DNS upstream servers here.
     + Name: This field is only used for logging.
     + Address: Same as BindAddress.
-    + Protocol: `tcp` or `udp`
+    + Protocol: `tcp`, `udp` or `tcp-tls`
     + SOCKS5Address: Forward dns query to this SOCKS5 proxy, `“”` to disable.
     + EDNSClientSubnet: Used to improve DNS accuracy. Please check [RFC7871](https://tools.ietf.org/html/rfc7871) for
     details.
@@ -230,7 +230,7 @@ www.qq.com.		43	IN	A	14.17.42.40
 + Code reference:
     + [skydns](https://github.com/skynetservices/skydns): MIT
     + [go-dnsmasq](https://github.com/janeczku/go-dnsmasq):  MIT
-+ Contributors: @V-E-O, @sh1r0, @maddie, @hexchain, @everfly, @simonsmh, @jemyzhang, @hexchain, @sh1r0, @yujinqiu
++ Contributors: @V-E-O, @sh1r0, @maddie, @hexchain, @everfly, @simonsmh, @jemyzhang, @hexchain, @sh1r0, @yujinqiu, @qyb
 
 ## License