Update README.md

research_seed/mnist/README.md

@@ -3,15 +3,15 @@ In this readme, give instructions on how to run your code.
 
 #### CPU   
 ```python   
-python mnist_train.py     
+python mnist_trainer.py     
 ```
 
 #### Multiple-GPUs   
 ```python   
-python mnist_train.py --gpus '0,1,2,3'  
+python mnist_trainer.py --gpus '0,1,2,3'  
 ```   
 
 #### On multiple nodes   
 ```python  
-python mnist_train.py --gpus '0,1,2,3' --nodes 4  
+python mnist_trainer.py --gpus '0,1,2,3' --nodes 4  
 ```