EC2 Default User

Update README.md

1 -#KHUBOBBOT 1 +# KHUBOBBOT
2 2
3 -##How to meet KHUBOBBOT 3 +## How to meet KHUBOBBOT
4 ![QR코드](https://qr-official.line.me/gs/M_220xtmcj_GW.png) 4 ![QR코드](https://qr-official.line.me/gs/M_220xtmcj_GW.png)
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