VS Code automatically trims any trailing whitespace in a file, which makes sense for a lot of formats, but in markdown, a double trailing whitespace has special meaning - it acts as a LF and creates a line break without a hard return (CRLF). This automatic trim also occurs when formatting a file according to the language’s rules.

Let’s configure VS Code to continue automatically trimming trailing whitespace, except for markdown files:

1. Open the Command Palette (View, Command Palette…. or CTRL+SHIFT+P)
2. Select Preferences: Open Settings (JSON)
3. Add the snippet:

   "[markdown]": {
       "files.trimTrailingWhitespace": false
   }
   

4. Save settings.json