Merge pull request #354 from prabhatnagarajan/grammar_nit

nit on grammar of a comment:

Author: muupan

examples/ale/train_dqn_ale.py

@@ -184,7 +184,7 @@ def make_env(test):
         [q_func(np.zeros((4, 84, 84), dtype=np.float32)[None])],
         os.path.join(args.outdir, 'model'))
 
-    # Use the same hyper parameters as the Nature paper's
+    # Use the Nature paper's hyperparameters
     opt = optimizers.RMSpropGraves(
         lr=args.lr, alpha=0.95, momentum=0.0, eps=1e-2)