Bump version to 1.3.1 on README
Bump version to 1.3.1 on README
lilleswing/deepchem,miaecle/deepchem,lilleswing/deepchem,deepchem/deepchem,miaecle/deepchem,Agent007/deepchem,ktaneishi/deepchem,deepchem/deepchem,ktaneishi/deepchem,peastman/deepchem,miaecle/deepchem,peastman/deepchem,Agent007/deepchem,ktaneishi/deepchem,Agent007/deepchem,lilleswing/deepchem