How to use the ox-hugo Makefile

Amongst others, I run this script as part of my tests after a system update.

cd /tmp
#Cleanup
rm -r ox-hugo
#Clone latest repository
git clone git@github.com:kaushalmodi/ox-hugo.git
cd ox-hugo
#Make change in org file
sed -i "s/\(Kaushal\)/The awesome \1/"  test/site/content-org/screenshot-subtree-export-example.org
#Simulate the export from org to markdown
make md1 ORG_FILE=test/site/content-org/screenshot-subtree-export-example.org
#Check if the changes appear in the created markdown (named after the title property in org)
grep Kaushal test/site/content/writing-hugo-blog-in-org-subtree-export.md

test/site/content-org/screenshot-subtree-export-example.org ::
author = ["The awesome Kaushal Modi"]