1. Headings

H1 (#)

H2 (##)

H3 (###)

H4 (####)

2. CodeBlock

#include <iostream>
using namespace std;
  
int main() {
  cout << "Hello World" << endl;
}

3. Quotes

'>' in front of the first sentence

'>>' for overlapped quotes

'>>>' for double overlapped quotes

4. Links

inline link
inline link

url link
https://velog.io/

5. Emoji

copy & paste emoji from

https://kr.piliapp.com/twitter-symbols/

or

window + . and choose

6. Compartment

--- or *** or ___

to create a division line