### to start
1. $ yarn start
1. then browse http://localhost:9080

- game-of-life speed 
  - [https://youtu.be/dvosJUDJJ-w](https://youtu.be/dvosJUDJJ-w)

- game-of-life start-stop 
  - [https://youtu.be/3CaQbHuAlqU](https://youtu.be/3CaQbHuAlqU)

- game-of-life resize 
  - [https://youtu.be/Klzl3StsqFo](https://youtu.be/Klzl3StsqFo)

- self-introduction
  - [https://youtu.be/dvoLUdEwzJY](https://youtu.be/dvoLUdEwzJY)