[Markdown] 깃허브 위키 마크다운 문법 표 만들기

- EXAMPLE

| First Header  | Second Header | Third Header         |
| :------------ | :-----------: | -------------------: |
| First row     | Data          | Very long data entry |
| Second row    | **Cell**      | *Cell*               |
| Third row     | Cell that spans across two columns  ||
[Table caption, works as a reference][section-mmd-tables-table1] 

Result

Table caption, works as a reference

FIRST HEADER	SECOND HEADER	THIRD HEADER
First row	Data	Very long data entry
Second row	Cell	Cell
Third row	Cell that spans across two columns

- Alignment

| Header One | Header Two | Header Three | Header Four |
| ---------- | :--------- | :----------: | ----------: |
| Default    | Left       | Center       | Right       |

HEADER ONE	HEADER TWO	HEADER THREE	HEADER FOUR
Default	Left	Center	Right

- Column spanning

| Column 1 | Column 2 | Column 3 | Column 4 |
| -------- | :------: | -------- | -------- |
| No span  | Span across three columns    |||

COLUMN 1	COLUMN 2	COLUMN 3	COLUMN 4
No span	Span across three columns

- Reference

https://productivityarchive.wordpress.com/2013/08/10/%EB%A7%88%ED%81%AC%EB%8B%A4%EC%9A%B4-%EC%96%B8%EC%96%B4%EB%A5%BC-%EC%9D%B4%EC%9A%A9%ED%95%B4%EC%84%9C-%ED%91%9C-%EB%A7%8C%EB%93%A4%EA%B8%B0%EC%98%81%EB%AC%B8-2/