* fix: solve public network access problem in deploying server
* fix: solve public network access problem in deploying server
* fix environment variable problems
* 在Docker部署指南中加入环境变量使用方法
* upd the image & the git link
del the maintainer label
* fix(docker): remove useless comment
* fix(docker): using LABEL instead of MAINTAINER
https://docs.docker.com/engine/reference/builder/#maintainer-deprecated
* feat(docker): add env var WIKI_REPO to control repo URL
It will fall back to GitHub automatically when WIKI_REPO is not set.
Co-authored-by: Coelacanthus <coelacanthus@outlook.com>