Merge pull request #1864 from adamperkowski/highlightos

Add HighlightOS

Author: palfrey

README.md

@@ -398,6 +398,7 @@ See also [Games Made With Piston](https://github.com/PistonDevelopers/piston/wik
 See also [A comparison of operating systems written in Rust](https://github.com/flosse/rust-os-comparison).
 
 * [0x59616e/SteinsOS](https://github.com/0x59616e/SteinsOS) - An OS for armv8-a architecture.
+* [adamperkowski/highlightos](https://github.com/adamperkowski/highlightos) - x86_64 OS kernel written in Rust & Assembly.
 * [Andy-Python-Programmer/aero](https://github.com/Andy-Python-Programmer/aero) - A modern, unix-like operating system following the monolithic kernel design.
 * [DragonOS-Community/DragonOS](https://github.com/DragonOS-Community/DragonOS) - An operating system with a self-developed kernel from scratch and Linux compatibility.
 * [redox-os/redox](https://gitlab.redox-os.org/redox-os/redox) - A Unix-like general-purpose microkernel-based operating system with a focus on security, stability, performance, correctness, simplicity and pragmatism that aims to be a complete alternative for Linux and BSD.