Nothing
This vignette describes some of the toy networks that are used in the networkreporting package's unit tests and in the examples found in some of the help files. These toy networks can be divided into two main categories based on whether or not the nodes they are composed of have attributes.
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.