Similar interface, different values. Not to say that the one in the article isn’t absolutely egregious as well though, so my point only really matters if you care about OP’s image specifically.

Put a slash before the dot, like 5\.:

5. Go straight to jail.

This is a Markdown issue really. Starting a line with a number and then a dot turns that line into an item in an ordered list. The most common behaviour (that I’ve seen) is to start that list from 1, regardless of what number is used. The intent is to make it easy to add items later without renumbering everything, for living documents at least.

The legend seems confusing to me. I think it’s trying to say that /home is non-standard. Notice that the description for /var/run explicitly states it’s deprecated, and has a solid border.