convert README.md to README.txt
clarify that add text must be quoted in usage and man page
stask ls <list> shows tasks in a list
add man page, -h and -v flags
editor fallback: prefer nvim > vim > vi when $EDITOR is unset
v0.2: add markdown document system for tasks
each task now gets a .md file in ~/.local/share/stask/docs/<list>/<id>.md
with yaml frontmatter (title, date, done). done/undo syncs to frontmatter.
edit opens $EDITOR, show prints doc to stdout. title syncs back to db on edit.
new commands: edit <id>, show <id>. delete/rm cleans up doc files.
initial commit: stask v0.1 — suckless task manager with CLI + GTK4 GUI