I think i should learn more about LND first. I've downloaded the LND's docker image. Then i tried to run the example commands, but it still dont work. "Unabl

I think i should learn more about LND first. I've downloaded the LND's docker image. Then i tried to run the example commands, but it still dont work. "Unable to find image 'myrepository/lnd:latest' locally docker: Error response from daemon: pull access denied for myrepository/lnd, repository does not exist or may require 'docker login': denied: requested access to the resource is denied." I'm also pretty new to Docker though. So maybe i should learn about Docker first before learning about LND. Can you tell us how to run our own LND instance and how to connect it to Agora? I think, a step-by-step tutorial would be a great help to us as an Agora user who want to self-host it.