From IMAG_Wiki

A table of contents and headings will be created for your wiki page by using varying number of equal signs (=) to bound lines of text.

Example:

=Section A=
==Section A.1==
==Section A.2==
=Section B=
==Section B.1==
===Section B.1.1===
===Section B.1.2===
==Section B.2==
=Section C=

Contents 1 Section A 1.1 Section A.1 1.2 Section A.2 2 Section B 2.1 Section B.1 2.1.1 Section B.1.1 2.1.2 Section B.1.2 2.2 Section B.2 3 Section C

Section A

Section A.1

Section A.2

Section B

Section B.1

Section B.1.1

Section B.1.2

Section B.2

Section C