changed read me

README.md

@@ -38,7 +38,7 @@ To use lightning do 2 things:
 ## What does lightning control for me?
 Everything! Except the following three things:
 
-**Automatic training loop**    
+**What happens in the training loop**    
 
 ```python
 # define what happens for training here
@@ -51,7 +51,7 @@ def training_step(self, data_batch, batch_nb):
     return {'loss': loss} 
 ```
 
-**Automatic validation loop**      
+**What happens in the validation loop**      
 
 ```python
 # define what happens for validation here
@@ -64,7 +64,7 @@ def validation_step(self, data_batch, batch_nb):
     return {'loss': loss} 
 ```
 
-**Collate the output of the validation_step**    
+**And what to do with the output of all validation batches**    
 
 ```python
 def validation_end(self, outputs):