Bug Report
Problematic behavior
When using h4 (to h6) tags in a document, the outline seems to consider them as higher level (h1?)
Expected behavior/code
h4 to h6 tags should be ignored in the document outline or properly indented.
Steps to Reproduce
Markdown content:
## Sub-Section 1
### Sub-subsection 1.1
#### sub-sub-subsection 1.1.1
## Sub-Section 2
### Sub-subsection 2.1
#### sub-sub-subsection 2.1.1
Environment
Additional context/Screenshots
Preview 🖼️
