Added a bunch of tags to the cheatsheet. 

Not all of them, but enough to make it way overflow the length and need a solution for size.

The added text has a wider width than before, so I adjusted the CSS to keep it's appearance appoximately as before.

I suggest a scrolling box and use of HTML5 <detail><summary> folding elements to make a manageable list - and maybe different highlighting for each section.

If the project is still active, then I can contribute further tags and maybe help in other ways.