"Create a button that pulls content directly into Airtable" - Can't configure according to the blog post

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Hi.
I recently read a great Airtable’s blog post - Create a button that pulls content directly into Airtable.
I tried configuring a zap, the would allow me to click a button (Could be Zapier Push or other chrome extension such as Pocket), and get an article’s details into Airtable. These details, have to include a summary of it and a sentiment analysis.These can be done by Algorithmia, but unfortunately it doesn’t have a zapier integration. In the article, it said that it could be done by using Webhooks. Does anybody here know how to do that?
Thanks a lot!