oz123/awesome-c ? reverse-engineered prompt

Build me a clean, well organized Awesome C list that feels good to browse on GitHub.

I want one main README that serves as the home page for a curated collection of open source C projects only, with clear sections for things like build systems, compilers, compression, networking, testing, web frameworks, and learning resources. Make it easy to scan, with short descriptions for each entry and a simple table of contents at the top so people can jump around quickly.

Please keep it strictly about pure C, not C++ stuff, and make the contribution rules obvious so new entries are added consistently. I also want the licensing note to be clear, since the list is released under CC BY SA 4.0. If anything needs checking against current project names or links, look up the latest info online.

The end result should look polished, easy to maintain, and ready for people to use as a reference when they need good C libraries or learning material.