message: Doc: add FacebookAdapter
diff: @@ -475,6 +475,21 @@ TwitchAdapter({
  ---
  +### Facebook
  +
  +Extends the `OauthAdapter` and pre-configures with Facebook OAuth URLs.
  +
  +```js
  +FacebookAdapter({
  + clientID: "<client-id>"
  + clientSecret: "<client-secret>",
  + scope: "<space separated list of scopes>",
  + onSuccess: async (tokenset) => {},
  +})
  +```
  +
  +---
  +
  ### Magic Links
  Issues magic links that you can send over email or SMS to verify users without the need of a password.
  