docs: add missing verb for cookies.set() explanation

[Zerotask]

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[Conduitry]

I think "you" -> "use" sounds better to me here than "you" -> "you call", but I'm not sure what sort of style we're using in the rest of this tutorial.

[Zerotask]

I think "you" -> "use" sounds better to me here than "you" -> "you call", but I'm not sure what sort of style we're using in the rest of this tutorial.

Personally I don't like the double "u".
In the following the verb "call" is used, e.g.

learn.svelte.dev/content/tutorial/03-sveltekit/04-headers-and-cookies/02-cookies/README.md

Line 37 in ee69014

Calling `cookies.set(name, ...)` causes a `Set-Cookie` header to be written, but it _also_ updates the internal map of cookies, meaning any subsequent calls to `cookies.get(name)` during the same request will return the updated value. Under the hood, the `cookies` API uses the popular `cookie` package — the options passed to `cookies.get` and `cookies.set` correspond to the `parse` and `serialize` options from the `cookie` [documentation](https://github.com/jshttp/cookie#api). SvelteKit sets the following defaults to make your cookies more secure:

I think "write" is probably the best, since you don't use or call it yourself, you just write it and then later on, it got called/executed.