Commenting in Markdown uses the same syntax as HTML, thus the <!-- comment here -->.

Example

Single line comment
✅ Wrap📋
01: ## Heading 
02: Some text here 
03: 
04: <!-- comment -->
05: 
06: some more text

Multiline comment
✅ Wrap📋
01: ## Heading 
02: Some text here 
03: 
04: <!-- comment line 1
05:  comment line 2
06:  comment line 3
07:  -->
08: 
09: some more text

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