initramfs (3):
chore: rewrite all links to the qTox repository from tux3 to qTox
chore: rewrite forgotten tux3 link to qTox
docs(INSTALL.md): remove unnecessary backticks in qTox URL
- Add /usr/local to the search paths for includes and libs.
- Build toxcore before updating homebrew. Updating homebrew somehow breaks the
toxcore build.