as a beginner/someone who has used flexbox very little if at all, I think starting on the 'complete guide to flexbox' link is a bit overwhelming/not that helpful.
I think the workshop should have its own intro section, saying what flexbox is and why/how we use it, in simple terms. And also, a few basic examples of flexbox in action (code and screenshots), which could even be lifted from the examples section in the complete guide.
Thoughts?