Update the Documentation to Match Contributing Guidelines about documentation HOT 4 OPEN

Speaking of which, recent changes to Capability document doesn't follow new style guide.
https://github.com/neoforged/Documentation/blob/main/docs/datastorage/capabilities.md?plain=1#L7-L8
These should be 1 line.

from documentation.

Well aware of this. I have decided to do a passthrough at a later point in time since there were some disagreements about whether formatting should be essential towards contribution or fixed after merging by the maintainers of the docs repo.

from documentation.

Is there any way I can contribute to this?

I spent a decent chunk of last night wrestling with the Advancements page being pretty out of date so I would love to pass on what I've now puzzled out and update the examples there, but if something is already in progress I don't want to step on any toes!

from documentation.

If there's not an open PR, it's likely not being worked on yet.

Currently IHH is the main person updating sections. I will be joining in once my new laptop decides to ship.

from documentation.