Merge branch 'lab1' of https://github.gatech.edu/cs3210-spring2022/xv6 into lab1

diff --cc README.md
index f4b2f518a17295e80dc125244c2bf0369698e83b,4c8d2b240015c619a5ba102f1d115bdc2257b431..bec3c22f7738f89eb2b7ccc864d5aeb17392af7e
--- 1/README.md
--- 2/README.md
+++ b/README.md
@@@ -538,7 -536,5 +542,6 @@@ of the following projects (no credit gi
  [bios]: https://github.com/qemu/qemu/tree/master/pc-bios
  [grub]: https://www.gnu.org/software/grub/
  [e820]: https://wiki.osdev.org/Detecting_Memory_(x86)#BIOS_Function:_INT_0x15.2C_EAX_.3D_0xE820
- [syllabus]: https://github.gatech.edu/pages/cs3210-spring2022/course/syllabus/
- [gradescope-a]: https://www.gradescope.com/courses/280787
- [gradescope-gr]: https://www.gradescope.com/courses/299636
 +[private-fork]: https://github.gatech.edu/pages/cs3210-spring2022/course/wiki/private-fork
+ [autograder-manual]: https://github.gatech.edu/pages/cs3210-spring2022/course/wiki/autograder/
+ [gradescope]: https://www.gradescope.com/courses/349001