If you wish, you may use this exercise
to add links to your homepage that will aid in using electronic
mail by providing ways to find addresses, and by providing
on-line assistance for topics related to email. In the process,
the exercise introduces the important technique of creating
"lists" in HTML. In particular, you will see how to create
numbered lists, where items in the list are numbered
sequentially, and un-numbered lists, where items
are not numbered, but each is preceded by a "bullet" symbol.
You will also see how to "nest" one list as a sublist of
another.