docs: update instructions for pnpm 7.1.1

[Intellicode]

Arguments are now passed to the next-app by default since pnpm 7.1.1

Documentation / Examples

• Make sure the linting passes by running yarn lint
• The examples guidelines are followed from our contributing doc

[balazsorban44]

Thanks! Please see #37049

As far as I am aware, newer versions of pnpm will work with -- as well, but not the other way around, so let's keep this for a while until the adoption of newer pnpm versions has increased.

[Intellicode]

Thanks! Please see #37049

As far as I am aware, newer versions of pnpm will work with -- as well, but not the other way around, so let's keep this for a while until the adoption of newer pnpm versions has increased.

The reason I stumbled upon is, is that with the instructions with -- it created a --typescript directory with pnpm 7.1.6, so at least with this version the instructions are not compatible.

➜  pnpm create next-app -- --typescript
...
Creating a new Next.js app in /Users/tom/repos/react-playground/pnpm-test/--typescript.
...
➜  pnpm-test ls -la
total 0
drwxr-xr-x  13 tom  staff  416 May 27 16:10 --typescript

[styfle]

This needs to be updated everywhere.

I created #37254