845af6378d
Adds docs/quickstart.md — a step-by-step, no-experience-assumed walkthrough from installing the build tools to the first coli chat, with per-OS copy-paste commands (Ubuntu apt, Windows MSYS2 or prebuilt binary, macOS brew), the ready-made HF int4 container plus the self-convert path, and an honest 'what to expect' on disk-bound speed. Commands verified against setup.sh and the coli subcommands; every cross-linked doc exists. Linked from the README's Get started section. Closes #414 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>