ASCII art banner

If you want to make ASCII art banners for your #gemini capsule, this page is very useful:

Do not forget to put a comment at the first line of your preformatted block declaration for accessibility :

 ``` ascii-art : Hello
 ██╗  ██╗███████╗██╗     ██╗      ██████╗ 
 ██║  ██║██╔════╝██║     ██║     ██╔═══██╗
 ███████║█████╗  ██║     ██║     ██║   ██║
 ██╔══██║██╔══╝  ██║     ██║     ██║   ██║
 ██║  ██║███████╗███████╗███████╗╚██████╔╝
 ╚═╝  ╚═╝╚══════╝╚══════╝╚══════╝ ╚═════╝ 
 ```

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