Example of how to commit dvc.lock

[DavidGOrtega]

This PR showcase how a simple code can commit our dvc.lock file after running our workflow

git config --local user.email "action@github.com"
git config --local user.name "GitHub Action"

git add dvc.lock
git add lock loss.csv metrics.json
git commit -m "CML commit"

git push 
dvc push

[github-actions]

5441f97

Path	Metric	master	workspace	Change
metrics.json	accuracy	0.87236	0.87228	-8e-05
metrics.json	precision	0.86419	0.86031	-0.00388
metrics.json	recall	0.88568	0.891	0.00532