Or for the ultimate in self-referencing cheat sheets, use:
https://duckduckgo.com/?q=ddg+cheat+sheet&ia=cheatsheet
This links to:
https://duck.co/ia/view/duckduckgo_cheat_sheet
I think this leveraging off DDG's goodies, part of their Instant Answers:
https://duck.co/ia?repo=goodies