add screenshot.png

Author: vimagick

README.md

@@ -8,5 +8,10 @@ wget -qO- http://ftp.apnic.net/apnic/stats/apnic/delegated-apnic-latest |
   awk -F '|' '$2=="CN" && $3=="ipv4" {printf "%s/%s\n", $4, 32-log($5)/log(2)}' > ignore.list
 ```
 
+## Screenshot
+
+![][3]
+
 [1]: https://github.com/easypi/cn-ignore-list/releases
 [2]: https://github.com/shadowsocks/openwrt-shadowsocks
+[3]: https://github.com/easypi/cn-ignore/blob/master/screenshot.png?raw=true