You can add a table of contents to your campaign, using an HTML link structure known as named anchors. You can use a bunch of HTML constructs in your campaigns, in addition to this one.
Let's imagine you have a campaign with four or five sections in it, each of which is fairly long. It's not inconceivable that some users may not want to read the entire thing, and would like to just jump to the sections that interest them. Here's where your clickable table of contents comes in handy.
Do not use any spaces, at all, in the hashtag link.
Don't include the hashtag in the section title link!
If you are not using section title modules:
Don't include the hashtag in the HTML a name tag!