Adding a shaare without entering a URL creates a text-only "note" post such as this one.
This note is private, so you are the only one able to see it while logged in.

You can use this to keep notes, post articles, code snippets, and much more.

The Markdown formatting setting allows you to format your notes and bookmark description:

Title headings

Multiple headings levels

• bullet lists
• italic text
• bold text
• strike through text
• code blocks
• images
• links

Markdown also supports tables: