cullmann.io/themes/blowfish/exampleSite/content/samples/thumbnail_sample/index.md

title	date	draft	description	slug	tags	summary	type
Thumbnails	2022-09-26	false	Turn on thumbnails for your articles.	thumbnail_sample	thumbnail sample	A quick example of how to start using Thumbnails in your artciles.	sample

A quick example of how to start using Thumbnails in your articles.

If your average directory for an article looks like this:

content
└── awesome_article.md

You need to change it from a single markdown file into a folder. Create a directory with the same name of the article, inside create a index.md file. You'll get a structure similar to what's below.

content
└── awesome_article
    └── featured.png

Inside the article you can now add an image file (almost all formats are supported but we recommend .png or .jpg) that starts with feature*. Example below.

content
└── awesome_article
    ├── index.md
    └── featured.png

This will tell Blowfish that this article has a feature image that can be used both as a thumbnail across your website as well as for oEmbed cards across social platforms. As an example, you can try copy pasting the URL of this article into a platform that shows oEmbeds (e.g. Twitter, WhatsApp, Telegram, etc) and see what is displayed.