Board Thread:Support Requests - Getting Started/@comment-4059391-20200701045431/@comment-25358237-20200701230613

The wiki, at the bottom, says "CC BY-SA 4.0" - according to the Creative Commons website, you are allowed to:

And importantly: The licensor cannot revoke these freedoms as long as you follow the license terms.
 * Share — copy and redistribute the material in any medium or format.
 * Adapt — remix, transform, and build upon the material for any purpose, even commercially.

However, it also says that you need to credit the site. Usually this is done on the image page.