In Holistics's dashboard, there are two types of widgets: Report widget and Text widget.
Report widgets are used to visualize your data. Since Report widgets are backed by datasets, you can freely explore the underlying data:
On the other hand, Text widgets are used to provide additional instructions, context, warnings... directly in your dashboard. The widget supports Markdown, which should serve your most common formatting requirements.
For example, adding dashboard section header:
Or embed videos in your dashboard: