The entire repository is based out of the book: "The C Programming Language, 2nd Edition". (The pages could be off by a bit, that's because I'm using the Bulgarian translated version of the book)
This main folder contains all the program examples sorted by page (001, 002 ... and so on).
When it's a lesson it'll be the page-name (example: 006-hello-world.c).
When it's an exercise it'll be the page-exercise (example: 001-1.1.c).
The file called "testing-around.c" has NO reference to any pages that's because its for testing of course and I'll save the code to a proper dedicated file (assuming I don't scratch it).
Some projects are my own custom spinoffs and they could be related so the book (if they are they'll be named via page-name) or they could just be some random C programs that I decided to make I would abstain from adding those types of apps and there probably won't be any of them, but I'm still mentioning it here in case there is.