Tutorial link on quickstart page is a 404

[bbugh]

Hi! 👋

Describe the bug

"Tutorial" link on https://graphql-rust.github.io/quickstart.html points to a 404 https://graphql-rust.github.io/tutorial.html

To Reproduce

1. Visit that link
2. Click Tutorial

Expected behavior

It loads a valid page

Additional context

You're awesome!