git secret init
echo "this is my secret" >> my_secret.txt
echo "my_secret.txt" >> .gitignore
#git secret tell <email address>
# for example,
git secret tell my_email@emailaddress.com
git secret add my_secret.txt
git secret hide
git add .gitignore .gitsecret/ my_secret.txt.secret 
git commit -m "test"
git push

git secret reveal