brainless 0.3.2

• The docs follow the README's four lines. Each page opens with the line it serves
  (gather, think, decide, get shit done) or says it is setup. docs/how-it-works.md is
  regrouped under the four lines with a new get-shit-done section, and docs/scripts.md
  names its sections the same way.
• "Every command proposes and you paste" becomes "the machine proposes and you apply",
  and "the same five steps" becomes "the same loop", wherever they appeared.
• Link labels in docs/commands.md, docs/thinking-clearer.md and docs/scripts.md read
  as page names, and docs/syncing.md points at the reference setup in
  docs/how-it-works.md instead of a README section that no longer exists.