Exercise illustrations in this folder

Adapted from the Everkinetic exercise images by Greg Priday
(https://github.com/everkinetic/data, commit 6f3ce86eb79b17e7bbaf588b7960149725bc8fc7),
licensed under Creative Commons Attribution-ShareAlike 4.0 International
(https://creativecommons.org/licenses/by-sa/4.0/).

Changes made by Chomp: the two frames of each exercise were aligned on a
shared canvas and cropped, the white background was made transparent, the
line colour was changed, and the images were resized. Generated by
scripts/build-exercise-media.ts.

These adapted images are likewise licensed under CC BY-SA 4.0.