WebGL2 - Reorganize Table of Contents or provide which order to read in

[orsi]

Is your feature request related to a problem? Please describe.
This guide is great, but there seems to be some discontinuity between a lot of the sections in the WebGL2 portion. Going from Fundamentals to How It Works seems like the correct path, but then How It Works references "previous" examples from 2D Matrices. 2D Matrices assumes you just did 2D Scales, etc.

Describe the solution you'd like
Table of contents should be reorganized to the proper order, or at least provide a step order for reading the guide.

Describe alternatives you've considered
No alternatives really. Just seems like the sections don't correlate with what they assumed was the previous sections.

Additional context