Help reviewing updated node setup guide

We've done a number of updates to the node setup guide in the documentation and are looking for feedback on those changes. Ideally we'd like someone who doesn't have experience running a node to go through the new version in the following PR and provide feedback on how well it worked getting a node setup on the test network. Please feel free to jump in and help if you are able, there are Docker commands at the bottom of the PR description allowing you to easily pull an updated copy of the docs and use them locally.