Update LICENSE and README files to reflect the goals of this fork:

Goals:

1. Why fork it?
2. What types of contributions will be accepted?
3. Re-iterate that this is an unofficial and unsupported fork i.e. support should not be sought from the Emby community.
4. Stance on circumventing the subscriber only features offered by Emby premiere. Hint: this project is definitively against that - those features can/should be purchased from emby.media i.e. the upstream developers more than deserve to be compensated for their work irrespective of whether I disagree with their licensing.
5. Stance on removing advertisements for upstream subscriber-only features. Hint: this project is definitively against that.