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README.md

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+# time by ktkz
+## minimalist clock and timer
+
+![demo](./docs/demo.gif)
+
+### usage
+- type somthing like `20 min 10 sec` or `by 12:10` to run timer
+- type `watch` to return to watch
+- use scroll wheel to change size
+- use spacebar or `pause`/`continue` to change timer states