It's not that elaborate, but I found it the best solution for cross platform and cross-location.
I can access it everywhere and edit it from everywhere, where I have a IDE available.
I like a 1 for all solution more then specific tools, like the specialized cheatsheet CLI tools - it gets messy after a while...
Anything I find my self Googling how to do (git remove merged branches from origin), I create an easy command for.
Respect to those who do it and it works for them though.
That said, if you put it up on a website and add a short blurb, search engines can come index it, and others may be able to find and use it.
Sometimes my search ends up on a Github Gist, which will often have a bit of discussion in the comments as well.