[REQ] Switch to a GH-compliant license file

[forart]

Hi there, 1st of all thanks for this great work !

Since we've "doxed" it in our HyMPS project (under the VIDEO category \ Editors page \ Non-linear editors subsection), can you please fix the license file for it ?

Although it may sounds like a minor aspect, license file uncompliance causes an inconsistent generation of the relative badge too:

(badge-generator URL: https://flat.badgen.net/github/license/olive-editor/olive/?label=LICENSE)

Anyway you can easily set a compliant one through the GH's license wizard tool.

Last but not least, let us know - in your opinion - how we could improve our categorizations and links to resources in order to favor collaboration between developers (and therefore evolution) of listed projects.

Thanks in advance.