cleaned up demos

examples/basic_examples/README.md

@@ -1,36 +1,35 @@
 # Basic Examples   
 Use these examples to test how lightning works.   
 
-### Test on CPU  
+#### Test on CPU  
 ```bash
 python cpu_template.py
 ```
 
-### Test on GPUs   
-This demo can train on a single GPU, multiple GPUs or multiple nodes by
-passing in different flags.   
-
-##### Train on a single GPU
+---   
+#### Train on a single GPU
 ```bash
 python gpu_template.py --gpus 1
 ```   
 
 ---    
-##### DataParallel (dp)   
+#### DataParallel (dp)   
 Train on multiple GPUs using DataParallel.
 
 ```bash
 python gpu_template.py --gpus 2 --distributed_backend dp
 ```   
 
-##### DistributedDataParallel (ddp)    
+---
+#### DistributedDataParallel (ddp)    
 
 Train on multiple GPUs using DistributedDataParallel   
 ```bash
 python gpu_template.py --gpus 2 --distributed_backend ddp
 ```
 
-##### DistributedDataParallel+DP (ddp2)    
+---
+#### DistributedDataParallel+DP (ddp2)    
 
 Train on multiple GPUs using DistributedDataParallel + dataparallel.
 On a single node, uses all GPUs for 1 model. Then shares gradient information