Question: where to put How to's / tips n tricks

[circulon]

I have a couple of tips I would like to add to the docs
eg handling authorization failures in AJAX calls using middleware.

Where should these go?

There is no "How To" internal section only links in the sidebar to external posts.
Do I just add a new file and then point to that in the sidebar nav?

Is there somewhere else these kind of tips should go?

Cheers for any pointers / recommended options