Tweak to the Laravel 8 Install Doc

[2h4services]

In the docs for Laravel 8 you have to swap out the composer dependency

However, Laravel 8 out of the box has the old Ignition as around 2.5

"facade/ignition": "^2.5",

Whereas this version is around ^1.0. This will cause a composer error if you just change the name.

So just to make it more clear you might want to add something that shows swapping that

"spatie/laravel-ignition": "^1.0"

[AlexVanderbist]

Thanks for the suggestion! We've added a bit more information (should appear later today).