ci: add C compiler to build script

fix: add new programs to help

docs: update demo video in README

Merge pull request #4 from shikaan/posix-compliant-builds

fix: posix compliant builds

Merge branch 'main' of github.com:shikaan/x86-bootloader

docs: minor rewording in the README

Merge pull request #3 from shikaan/readme

feat: add a new readme with all associated resources

feat: add help utility

docs: add developer documentation to get started with OSle

fix: adjust timing of snake