To create a list of every heading, with a link to that heading, put a table of contents tag on its own line.

[[toc]]
[[f>toc]] - right-float table of contents
[[f<toc]] - left-float table of contents

Note that the table of contents creates a bookmark called "#toc".

If you want a particular heading NOT to appear in the table of contents, append the pluses with an asterisk, like this:

+ This section appears in the TOC
+* And this one does not
++* Neither does this one

This section appears in the TOC

And this one does not

Neither does this one