doc: update contributors

README.md

@@ -8,7 +8,7 @@
 
 frp is a fast reverse proxy to help you expose a local server behind a NAT or firewall to the internet. Now, it supports tcp, udp, http and https protocol when requests can be forwarded by domains to backward web services.
 
-## Catalog
+## Table of Contents
 
 <!-- vim-markdown-toc GFM -->
 * [What can I do with frp?](#what-can-i-do-with-frp)
@@ -469,3 +469,4 @@ Donate money by [paypal](https://www.paypal.me/fatedier) to my account **fatedie
 * [Eric Larssen](https://github.com/ericlarssen)
 * [Damon Zhao](https://github.com/se77en)
 * [Manfred Touron](https://github.com/moul)
+* [xuebing1110](https://github.com/xuebing1110)

README_zh.md

@@ -487,3 +487,4 @@ frp 是一个免费且开源的项目，我们欢迎任何人为其开发和进
 * [Eric Larssen](https://github.com/ericlarssen)
 * [Damon Zhao](https://github.com/se77en)
 * [Manfred Touron](https://github.com/moul)
+* [xuebing1110](https://github.com/xuebing1110)