Dead links

[rewired-gh]

• https://wiki.hitsz.org/llvm-kaleidoscope/ch-9.md
• https://wiki.hitsz.org/llvm-kaleidoscope/ch-10.md

Error log:

WARNING  -  A relative path to 'llvm-kaleidoscope/ch-9.md' is included in the 'nav' configuration, which is not found in the documentation files
WARNING  -  A relative path to 'llvm-kaleidoscope/ch-10.md' is included in the 'nav' configuration, which is not found in the documentation files