Support native docker run instead of using the launcher script

[ZmingZinnia]

No description provided.

[lins05]

"emergency plan" 有点不适合, 应该说 "custom admin username and password"

[lins05]

关于 /image 的都从 README.md 中去掉吧, README.dev.md 中有就行了

[lins05]

正在运行中的 container 需要 docker rm -f seafile-server

[lins05]

#!/bin/bash

echo "=============================================================================="
echo "The launcher script is now deprecated. Please see https://github.com/haiwen/seafile-docker/blob/master/upgrade_from_old_format.md"
echo "=============================================================================="
echo
echo "Or run this command directly:"
echo
echo "   docker rm -f seafile"
echo "   docker run -d -it --name seafile -v $(dirname $PWD)/shared:/shared -p 80:80 -p 443:443 seafileltd/server"
echo
echo "=============================================================================="