`portless run-docker` for running containers with docker or podman

[nektro]

current portless run is called like so

portless run [CMD...]

which launches CMD with the $PORT environment variable set

I am suggesting

portless run-docker [NAME] [CPORT] [ARGS...]

which would call

docker run --publish PORT:CPORT ARGS...

so therefor:

portless run-docker shynet 8080 milesmcc/shynet

eg would launch https://hub.docker.com/r/milesmcc/shynet on http://shynet.localhost