Nothing
BiocGenerics is an R/Bioconductor package that defines S4 generic functions used in Bioconductor.
See https://bioconductor.org/packages/BiocGenerics for more information including how to install the release version of the package (please refrain from installing directly from GitHub).
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.