docs: fix link to cookies API (sveltejs#489)

Author: bent101

content/tutorial/03-sveltekit/06-forms/01-the-form-element/README.md

@@ -4,7 +4,7 @@ title: The <form> element
 
 In the [chapter on loading](page-data), we saw how to get data from the server to the browser. Sometimes you need to send data in the opposite direction, and that's where `<form>` — the web platform's way of submitting data — comes in.
 
-Let's build a todo app. We've already got an in-memory database set up in `src/lib/server/database.js`, and our `load` function in `src/routes/+page.server.js` uses the [`cookies`](https://kit.svelte.dev/docs/load#cookies-and-headers) API so that we can have a per-user todo list, but we need to add a `<form>` to create new todos:
+Let's build a todo app. We've already got an in-memory database set up in `src/lib/server/database.js`, and our `load` function in `src/routes/+page.server.js` uses the [`cookies`](https://kit.svelte.dev/docs/load#cookies) API so that we can have a per-user todo list, but we need to add a `<form>` to create new todos:
 
 ```svelte
 /// file: src/routes/+page.svelte