Making a collapsible markdown section

From this gist by pierrejoubert73:

• Have an empty line after the </summary> tag or markdown/code blocks will not render.
• Have an empty line after each </details> tag if you have multiple collapsible sections.

<details>
  <summary>Click me</summary>
  
  ### Favorite Disney Movies
  1. Wall-E
  2. Moana 
</details>

Live example:

Click me

Favorite Disney Movies

1. Wall-E
2. Moana