I am following the step-by-step tutorials on DigitalSreeni's YouTube channel.
Here is a link to his playlist: https://www.youtube.com/playlist?list=PLZsOBAyNTZwYHBIlu_PUO19M7aHMgwBJr.
To make it easier to work on Google Colab, I have uploaded his test images to my Google Drive and mounted it. In order to sync my work to Github, I use Google Drive to sync the files to my local desktop and then push them using VScode.