Rename repo to ray_lightning (#19)

Author: amogkam

README.md

@@ -8,9 +8,9 @@ Once you add your plugin to the PyTorch Lightning Trainer, you can parallelize t
 This library also comes with an integration with [Ray Tune](tune.io) for distributed hyperparameter tuning experiments.
 
 ## Installation
-You can install the master branch of ray_lightning_accelerators like so:
+You can install the master branch of ray_lightning like so:
 
-`pip install git+https://github.com/ray-project/ray_lightning_accelerators#ray_lightning`
+`pip install git+https://github.com/ray-project/ray_lightning#ray_lightning`
 
 ## PyTorch Distributed Data Parallel Plugin on Ray
 The `RayPlugin` provides Distributed Data Parallel training on a Ray cluster. PyTorch DDP is used as the distributed training protocol, and Ray is used to launch and manage the training worker processes.