Hub: Clarify module licensing

[aleksandar]

i can't find any information about license for the models. maybe the apache 2.0?

[agasparovic-zz]

Yes, the modules are licensed under the Apache 2.0 Licence, just like the library code itself. I will leave this issue open to track clarifying module licensing in our documentation.

Thanks!

[Harshini-Gadige]

I see the licence information is updated now(please see below snippet). Hence closing the issue. Please add your comments(just in case if what I understand is wrong). I'll reopen the issue with necessary comments. Thank you !