YAML front matter shown incorrectly

[jcaister]

Issue description

Many markdown editors support YAML front matter as a form of document metadata. This is defined as text at the top of the .md file separated by two sets of '---' and should not be previewed (or alternately shown as raw text with the two sets of dashes included).

Markdown to reproduce

  ---
  created: 2023-01-10T11:42:33 (UTC +13:00)
  tags: []
  source: https://www.facebook.com/reel/1265049801004473
  author: 
  ---

Screenshot

Document as shown in MarkdownViewer++:

Screenshot of same document in Obsidian (editor on left and viewer on right):

Environment

• Notepad++ 8.4.7 (x86)
• MarkdownViewer++ 0.8.2.25525
• Windows 10 21H2 (x64)
  (5) Facebook.md