How to export a cloud flow and upload on Github

Hi everyone, 

Does anyone know how to publish a Power Automate cloud flow, especially on GitHub?

Otherwise, does anyone have any recommendation on how to showcase a Power Automate cloud flow as part of my developer portfolio?

I would like to add some of my Power Automate cloud flows to my developer portfolio, and I've been looking for a while for a solution to do so. I have learned that I can export a Power Automate cloud flow, but besides that, I am still unsure about how I could then upload the resulting .zip file on Github, or otherwise showcase a cloud flow as part of my developer portfolio.

I appreciate any help with this,
Thanks in advance,

Dario.