Update README.md

Author: dvyukov

README.md

@@ -25,6 +25,7 @@ For other OS kernels check: [Akaros](docs/akaros/README.md), [FreeBSD](docs/free
 
  - [Kernel QA with syzkaller and qemu](https://github.com/hardenedlinux/Debian-GNU-Linux-Profiles/blob/master/docs/harbian_qa/fuzz_testing/syzkaller_general.md) (tutorial on how to setup syzkaller with qemu)
  - [Syzkaller crash DEMO](https://github.com/hardenedlinux/Debian-GNU-Linux-Profiles/blob/master/docs/harbian_qa/fuzz_testing/syzkaller_crash_demo.md) (tutorial on how to extend syzkaller with new syscalls)
+ - [Kernel debug tool with syzkaller](https://github.com/hardenedlinux/Debian-GNU-Linux-Profiles/blob/master/docs/harbian_qa/fuzz_testing/syz_debug.md) (debugging qemu VM created by syz-manager with gdb)
  - [Coverage-guided kernel fuzzing with syzkaller](https://lwn.net/Articles/677764/) (by David Drysdale)
  - [ubsan, kasan, syzkaller und co](http://www.strlen.de/talks/debug-w-syzkaller.pdf) ([video](https://www.youtube.com/watch?v=Acp0A9X1254)) (by Florian Westphal)
  - [Debugging a kernel crash found by syzkaller](http://vegardno.blogspot.de/2016/08/sync-debug.html) (by Quentin Casasnovas)