[RFC] doc: change recommendation for installation of tools on Fedora

[Thomas Monjalon]

09/06/2025 05:03, Stephen Hemminger:
> The syntax changed with Fedora 41 and the old command is now:
> $ sudo dnf group install development-tools
> 
> Not sure what is on RHEL 9 or later.
[...]
> -    * For RHEL/Fedora systems these can be installed using ``dnf groupinstall "Development Tools"``
> +    * For RHEL/Fedora systems these can be installed using ``dnf group install development-tools``

The new command works on old Fedora, but not on RHEL.
So I keep the old command for RHEL.

Applied with this change, thanks.