Here's a simple list. Because the type isn't specified, it defaults to a bulleted list. Because spacing isn't specified, it defaults to loose, which leaves a blank line between each item.
<list> * Creating a Mail Message * Sending a Message * Reading Your Mail <\list>
The online format of the preceding markup is:
To format the same list with numbers and reduced spacing between items, use:
<list order tight> * Creating a Mail Message * Sending a Message * Reading Your Mail <\list>
The output is: