• A level 2 heading to start
• Followed by a level 4
• Then a level 1
• And another level 2
• Then a level 5
• And then a level 3
• Followed by a level 6
• Then another level 3
• Then level 4
• Level 3
• Level 2
• Level 4
• Level 1

Here's a sample Markdown document with weird headings

¶A level 2 heading to start

¶Followed by a level 4

¶Then a level 1

¶And another level 2

¶Then a level 5

¶And then a level 3

¶Followed by a level 6

¶Then another level 3

¶Then level 4

¶Level 3

¶Level 2

¶Level 4

¶Level 1