This is the welcome message

It is an HTML file named "welcome_message.html" and it is stored in the folder data/

This file can be any content acceptible to HTML standards, including images and all formatting

images are reference locally by the address <img src="images/someimage.jpg"> , or absolutely by the full domain address, then images/someimage.jpg

Of course, this means that images must be uploaded to the images directory if they are to be viewed from the local directory.