@Renegade Sewist: your link is broken. Picture below
I wrote a little
Lunapic tute for someone on PR and it's slight modification is below:
save your picture to your computer desktop (or somewhere you can find it easily);
use the 'Browse folder' in Lunapic to import it;
crop or resize as required and APPLY the results;
when you are happy with the result, scroll to the bottom for the 'Save' options and select 'Imgur';
in the 'Image URL' window will be a link that ends .jpg
copy everything in that window and use it to repost here using the little picture icon in reply.