increased reward for shooting big agent

Project/Assets/ML-Agents/Examples/CubeWars/Scripts/SmallCubeAgent.cs

                 {
                     hit.collider.gameObject.GetComponent<LargeCubeAgent>().HitAgent(.05f);
 
-                    AddReward(.1f * m_Bonus);
+                    AddReward(.5f * m_Bonus);
                 }
             }
         }