Can't view install script via web browser

The install command on the site is this:

```
curl -fsSL https://deno.land/install.sh | sh
```

If you want to look at the script before running it, and try to visit this in a browser:

https://deno.land/install.sh

It redirects to this:

https://deno.land/x/install/install.sh

which is a 404.

Workaround is of course to curl/wget it and view it, but for something ~sensitive like this, I think it's important that it's very accessible/visible.

Also, it'd be great if this page documented a few common options: https://docs.deno.com/runtime/getting_started/installation/ Ideally including an example of how to pass those flags, since I always forget the incantation required to add an option like `-y` when it's being piped into sh:
```
curl -fsSL https://deno.land/install.sh | sh -s -- -y
```