Is there any documentation on how the Imgur plugin works, I can't find a guide here.

When I try the following installation step I get no results:

After entering the Client ID and Client Secret, I click Get PIN. It redirects me to Imgur and asks for access permission. I allow ksnip.
Imgur then gives me a 10 digit PIN. After entering this PIN, I click Get token. I say OK and restart the app.
That's all.

When I click the upload image button, nothing happens.

Am I doing something wrong, this doesn't seem to be working. I still can't upload to Imgur.