Updated How To: Use Recaptcha with Devise (markdown)
after verify_recaptcha error message show in view.
This `true` return is not necessary. We can only respond if is not validated by recaptcha
Removed alternative example, because block is yielded after resource is created. So this verification does not prevent creation of resource.
The route has to be updated to override default Devise controller.
add alternative option to verify captcha in controller action
Fixes params method name (sign_up instead of sign_in, since we're in registrations)
Added troubleshooting/errors
Added `(sign_up_params)` to `build_resource` to Alternate implementation to make form sticky.
Add issue link
Add notice "Captcha for Login "
Changed flash[:alert] to flash.now[:alert] because you use flash[] when redirecting and flash.now[] when rendering.