QRCode Reader
QRScanner page https://lisyoen.github.io/qrscanner/QRS.html
전체 구성 https://docs.google.com/presentation/d/11i5VOZ4MypXes8EYC-BhJEnhyhzimPf8wpFoJ1qk638/edit?usp=sharing
QR Code Generator 와 연계해서 사용 https://github.com/lisyoen/qrgen
테스트용 QR Code Generator https://qr-creator.com/plain-text.php
vscode online 에서 수정되나 확인