This is a quick example of using thumbnails in your articles.
If your article directory looks like this:
content
└── awesome_article.md
You need to change it from a single markdown file to a folder with the same name. Create a directory with the same name as the article and add an index.md file in this directory. The directory structure looks like this:
content
└── awesome_article
└── featured.png
Inside the folder, you can add a feature image starting with feature* (supports almost all formats, but .png or .jpg is recommended). The directory structure looks like this:
content
└── awesome_article
├── index.md
└── featured.png
This will tell Blowfish that this article has a feature image, which can be used as a thumbnail on the website and also for oEmbed cards on social platforms. As an example, you can try copying and pasting the URL of this article to a platform that can display oEmbeds, such as Twitter, WhatsApp, Telegram, etc.