Markdown table merge cell method

Markdown does not currently support merging cells, but Markdown supports HTMLsyntax, and you can use HTML to merge cells.

Example:

<table>
    <tr>
        <th>班级</th><th>课程</th><th>平均分</th>
    </tr>
    <tr>
        <td rowspan="3">1班</td><td>语文</td><td>100</td>
    </tr>
    <tr>
        <td>数学</td><td>100</td>
    </tr>
    <tr>
        <td>英语</td><td>100</td>
    </tr>
</table>

effect:

class	course	The average score
Class 1	Language	100
	mathematics	100
	English language	100

Reference: Can markdown table syntax merge cells?