Markdown folded sections (default open and closed)

fold_default_open.md

Markdown Folded Text (Default Open)

<details open>

  <summary>Click to collapse</summary>
  
  this one starts expanded because of the "open"
  
</details>

Click to collapse

this one starts expanded because of the "open"

Markdown folded section (default closed)

<details>

  <summary>Click to expand</summary>
  
  this one starts collapsed
  
</details>

Click to expand

this one starts collapsed