fix #18: inverse the coding and shebang line

papers/openai2018learning/env.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """
 Provide the environment (world, states, actions, rewards, terminal conditions, etc) defined in the paper [1] using the
 PyRoboLearn framework.

papers/openai2018learning/main.py

@@ -1,5 +1,5 @@
-# -*- coding: utf-8 -*-
 #!/usr/bin/env python
+# -*- coding: utf-8 -*-
 """
 This sample of code implements the "Learning Dexterous In-Hand Manipulation" paper [1] using the PyRoboLearn framework.