The work of the Singularity project is licensed under the Creative Commons Attribution 4.0 license. This includes all the data we publish on this website. If any content on this site is not licensed as such, it will be clearly indicated.
In short, this means you can freely reuse and distribute this content, also commercially, as long you include proper attribution.
The attribution is (if not specifically mentioned otherwise):
(CC) Blender Foundation | studio.blender.org
Excluded from the Creative Commons license is: all logos on this website (including the Blender logo, Singularity logo, Creative Commons logo, sponsor logos) and associated trademarks. Also excluded is material that’s clearly not produced by the Blender project, such as magazine covers.