Refactor the README to make it easier to follow

ingredients/template.cfg

@@ -0,0 +1,25 @@
+#            __          ____                        ____  _____
+#     ____  / /_  __  __/ / /___  ____ ___  ___     / __ \/ ___/
+#    / __ \/ __ \/ / / / / / __ \/ __ `__ \/ _ \   / / / /\__ \
+#   / /_/ / / / / /_/ / / / /_/ / / / / / /  __/  / /_/ /___/ /
+#  / .___/_/ /_/\__, /_/_/\____/_/ /_/ /_/\___/   \____//____/
+# /_/          /____/
+
+# What ? This partial kickstart file provides a template one can use to further extend an installation
+
+# %packages --exclude-weakdeps # Beginning of the packages section. Excludes weak package dependencies
+# Any software in the official Fedora repository can be added [here](https://packages.fedoraproject.org/).
+
+# gnome-shell # the version 3 of the GNOME desktop environment, without any presintalled applications
+
+# %end
+
+# %post --nochroot --log=/mnt/sysimage/opt/base-desktop-gnome.log # Beginning of %post section. Those commands are executed outside the chroot environment. 
+# Use this section to further extend the system
+
+# cat >> /mnt/sysimage/usr/share/glib-2.0/schemas/org.gnome.desktop.background.gschema.override<< EOF
+# [org.gnome.desktop.background]
+# picture-uri='file:///usr/share/backgrounds/elementary/Morskie Oko.jpg'
+# EOF
+
+# %end # End of the %post section