Introduction
Full table of contents:
- Section 1
- Section 2
- Section 2.1
- Section 2.2
- Section 2.2.1
- Section 3
Table of contents to level 0 (should be empty):
Table of contents to level 1 (only top-level sections):
- Section 1
- Section 2
- Section 3
Table of contents to level 2:
- Section 1
- Section 2
- Section 2.1
- Section 2.2
- Section 3
Table of contents to level 3 (should be equivalent to full toc):
- Section 1
- Section 2
- Section 2.1
- Section 2.2
- Section 2.2.1
- Section 3
Section 1
Section 2
Section 2.1
Section 2.2
Section 2.2.1
Section 3