RE: Pic and vids info files.

You can include rich media in a bot's response through a URL link, or HTML.

URL Example:

Here is a pic https://www.botlibre.com/avatars/at26719233.jpg

HTML Example:

Here is a pic <img src='https://www.botlibre.com/avatars/at26719233.jpg'/>

See, Rich HTML Responses, Buttons, Links, and Choices