docs: Updated README to clarify app creation instructions.

[binhunaish]

Description

the developer would copy the 4 lines at once. they shouldn't, that's why I separated them each and took the comments away of the code box.

Before

README.md:

# Get walked through the prompts for the different options to start your new app
npx ignite-cli@latest new PizzaApp

# Accept all the recommended defaults and get straight to coding!
npx ignite-cli@latest new PizzaApp --yes

CMD:

'#' is not recognized as an internal or external command,
operable program or batch file.

After

Get walked through the prompts for the different options to start your new app

npx ignite-cli@latest new PizzaApp

Accept all the recommended defaults and get straight to coding!

npx ignite-cli@latest new PizzaApp --yes

Checklist

• README.md and other relevant documentation has been updated with my changes
• I have manually tested this, including by generating a new app locally (see docs).

[frankcalise]

Thanks!