Clone repo somewhere:
cd /tmp
git clone https://github.com/Perlovka/awesomewm-modules.git
Copy files to the directory where awesome rc.lua is located:
cp -ar /tmp/awesomewm-modules/gears ~/.config/awesome/gears.filesystem.ls List directory content
gears.filesystem.inotifywatch Watch filesystem for changes
gears.xdg.icon_theme Create XDG compliant icon theme using lgi.Gtk
gears.xdg.menu Create dynamic awful.menu from XDG .menu file using libgnome-menu