As I can make a Webhook of this page

What happens is that already and I tried all ways to send data to a spreadsheet and as much as I draw on examples do not work either one or the other thing the last example to make was this http://www.open-electronics.org/how-send-data-from-arduino-to-google-docs-spreadsheet/ but it turned out that the Photon can not open https, so I got to ententer can only be done with a WebHooks.
But I have no idea how to make one and what comes intenete http://docs.particle.io/photon/webhooks/ but without success and when I try to create one sends me the following error.

why not use IFTTT and go directly to a Google doc?

well what about IFTTT esque efficiency not expected and I try Webhook.