ArchStrike wiki/setup command for listing group members

[saildata]

current:

ArchStrike-Wiki/setup.md.blade.php

Line 115 in e74ea15

$ pacman -Sgg | grep archstrike-<groupname>

correct:
$ pacman -Sg archstrike-<groupname>

from pacman man page

-g, --groups
           Display all packages that are members of a named group. If a name is not
           specified, list all grouped packages.