add some doc to test_qlearning
add some doc to test_qlearning

pimms/DeepCL,FighterLYL/DeepCL,hughperkins/DeepCL,MiniLight/DeepCL,Peilong/DeepCL,pimms/DeepCL,mrgloom/DeepCL,mrgloom/DeepCL,Peilong/DeepCL,Peilong/DeepCL,pimms/DeepCL,MiniLight/DeepCL,FighterLYL/DeepCL,hughperkins/DeepCL,mrgloom/DeepCL,pimms/DeepCL,FighterLYL/DeepCL,MiniLight/DeepCL,Peilong/DeepCL,FighterLYL/DeepCL,mrgloom/DeepCL,pimms/DeepCL,MiniLight/DeepCL,hughperkins/DeepCL,Peilong/DeepCL,MiniLight/DeepCL,mrgloom/DeepCL,FighterLYL/DeepCL,hughperkins/DeepCL,hughperkins/DeepCL