Update README.md

Author: arloor

README.md

@@ -10,7 +10,7 @@
 
 ```shell
 # 如果vps不能访问 raw.githubusercontent.com 推荐使用这个
-wget --no-check-certificate -qO natcfg.sh http://www.arloor.com/sh/iptablesUtils/natcfg.sh && bash natcfg.sh
+wget --no-check-certificate -qO natcfg.sh https://www.arloor.com/sh/iptablesUtils/natcfg.sh && bash natcfg.sh
 ```
 或