Add link to comparison to Module page

Hi there,

I have created a handbook page which compares three "captcha-free" Modules:
https://www.drupal.org/node/2652176

I think a link to the comparison from your module page could help site-builders who are fighting spam.

Best,
Walter

PS: Ever thought about a merge with honeypot module? I seems that both are extremely similar. In the end it would be less maintenance work.