foam-template/docs/features/custom-snippets.md

Adding Custom Snippets

You can add custom snippets whilst the default set of snippets are decided by following the below steps:

1. Cmd + Shift + P (Ctrl + Shift + P for Windows), type snippets and select Preferences: Configure User Snippets.
2. The command palette will remain in focus. Search for markdown and select the entry entitled markdown.json (Markdown).
3. A JSON file will open. You can author your own snippets using the documentation to help you, or if you're using a snippet shared by another Foam user then you can copy and paste it in, as the below GIF demonstrates:

To get started, you might consider replacing the entire contents of the markdown.json file opened by the steps above with the JSON in this comment.