I just filled in the form to add my project: SteemPi 

But the field ask to upload to postimg.com and this domain name is not in use for this service anymore, you maybe want to change the text in the form and change it to a other image hosting service.

The form still works when putting in a non postimg.com url and this is how i used the form to provide my submission.

Hope it will be listed soon, 

Thanks for the work on this list i like and use it often.