You'd use an ordered list tag:
<ol>
</ol>
Inside this tag, you have <li></li> which will contain individual lists.
For example:
<ol>
<li> This is my first point. </li>
<li> This is my second point. </li>
<li> This is my second point. </li>
</ol>
is displayed as:
1. This is my first point.
2. This is my second point.
3. This is my second point.
