Update 08-adding-a-form-to-a-livewire-component.md

[thethunderturner]

Accidental dd()

Description

Accidental dd() in the docs

• [ ] Visual changes (if any) are shown using screenshots/recordings of before and after.

Code style

• [ ] composer cs command has been run.

Testing

• [x] Changes have been tested.

Documentation

• [x] Documentation is up-to-date.