Merge branch 'patch-1' into 'master'

change disk size 2->20GB

Closes #116

See merge request !139

build-inside-vm.sh

@@ -4,7 +4,7 @@
 # nounset: "Treat unset variables and parameters [...] as an error when performing parameter expansion."
 # errexit: "Exit immediately if [...] command exits with a non-zero status."
 set -o nounset -o errexit
-readonly DISK_SIZE="2G"
+readonly DISK_SIZE="20G"
 readonly IMAGE="image.img"
 # shellcheck disable=SC2016
 readonly MIRROR='https://mirror.pkgbuild.com/$repo/os/$arch'