Feature Request: Change SVG on click.

[ceiphr]

Hello,

Great plugin!

I have one request. When I click the copy button, could the SVG be changed to a check mark for a short period of time? This could be seen as a much more subtle way of conveying the information was copied.

I'd love to see this as a toggle in the config.

[benhalverson]

I was just about to ask this same question 😄