@Jain I've seen that before, but I think CC BY-NC-SA 4.0 could make it quite difficult since I need it to be AGPLv3-compatible.
As stated at https://www.gnu.org/licenses/license-list.html#CC-BY-NC:
> This license does not qualify as free, because there are restrictions on charging money for copies. Thus, we recommend you do not use this license for documentation.
Including it separately would probably be fine though.