Reformatted the page, reworded some paragraphs, and added more
information about Docker for clarity.
After having to go through these steps myself, I found it might be
helpful to merge some of my suggested changes for others to view.
Hey, since I've been using Actual via Traefik for a few days now, I took
the time to add a little bit to the documentation in that regard. I hope
it fits so far. Please feel free to comment/improve anything.
