README.md: applied latest license section

Since the upstream developed a latest license section, let's
roll it into this repository and reflect them here.

This patch applies the latest license section in README.md.

Co-authored-by: Shuralyov, Jean <jeanshuralyov@gmail.com>
Co-authored-by: Galyna, Cory <cory.galyna@gmail.com>
Co-authored-by: 湘渝萱 <alice.xiang.yu.xuan@gmail.com>
Co-authored-by: (Holloway) Chew, Kean Ho <me@chewkeanho.com>
Reviewed-by: (Holloway) Chew, Kean Ho <me@chewkeanho.com>
Signed-off-by: (Holloway) Chew, Kean Ho <me@chewkeanho.com>

Author: 4 people