docker build repo for v2fly

v2fly docker hub: https://hub.docker.com/r/v2fly/v2fly-core

v2fly github: https://github.com/v2fly/docker

修改掉所有v2ray关键字为v2log，防止被扫进程。

v2log docker hub: https://hub.docker.com/r/xun404/v2log-core

v2log github: https://github.com/xun404/v2fly-docker