I tried out this tutorial today and managed to complete it successfully, but I have some suggestions to help with some hiccups I encountered along the way.
Minor edit re: each node steps for validators.txt
Fix private network fixes
For better URLs, the content folder has been renamed 'docs' and all
other files have been moved up a level. Also, non-docs images have been
moved to the static folder at the top level where they belong.
Many relative paths had to be fixed to make this work.