This request diverges from the pure Markdown text perspective.
For a more visually appealing document, sometimes I like to use different symbols to organize my thoughts. In special, I like using certain arrows available in Unicode such as:
- U+27F5 ⟵
- U+27F6 ⟶
- U+27F7 ⟷
I already use an extension that accomplishes this result in VS Code. You can see below a screenshot of the “favorites” screen for that extension. It displays the symbols I use most often.
Insert Unicode - VSCode Extension
Such implementation would be very handy for me.