Script filename

[jack126guy]

Wouldn't running this require the extension: imgur-screenshot.sh? I would also advise clarifying that ./ is needed if PATH is not set.

[jomo]

Yes, of course you need to give the path if you haven't added it to your $PATH. From the readme:

Bind the script to a hotkey or add it to your $PATH for quick access

And yes, if you add the .sh file to your $PATH you will of course need to give the extension, too.
However most people would probably create a symlink , e.g. /usr/bin/imgur-screenshot. That's why I left it out in the examples in the readme.

I think this is obvious enough for everyone to understand however.