INSTALL: Document macOS libedit / readline issue(s)
Split from #45161
"space for improvement in the autotools side in the documentation (some people may miss readline support as getting it enabled with homebrew can be a bit more involved than running ./configure with default parameters)"
Split from #45161
"space for improvement in the autotools side in the documentation (some people may miss readline support as getting it enabled with homebrew can be a bit more involved than running ./configure with default parameters)"