LICENSE.txt: Include the full GPLv3 license instead of the short form. [ci skip]
LICENSE.txt: Include the full GPLv3 license instead of the short form. [ci skip]

nanshe-org/nanshe,nanshe-org/nanshe,DudLab/nanshe,DudLab/nanshe,jakirkham/nanshe,jakirkham/nanshe