title: Easy way to add 'copy to clipboard' to GitHub markdown?
body: <p>Specifically, I have blocks of code for install that I want the user to be able to quickly copy and paste into a terminal. I'd like a button to 'copy to clipboard' for the code block. Since there's a 'copy to clipboard' button for the git clone URLs, I was wondering if I could piggy back off that or if not whether there was some relatively simple I could add to the MD to make this happen. Or is this simply not possible with the processing and 'safication' the MD text goes through?</p>