doc fix (#651)

Co-authored-by: Jeff Rasley <jerasley@microsoft.com>

docs/_pages/config-json.md

@@ -54,6 +54,7 @@ title: "DeepSpeed Configuration JSON"
   }
 ```
 The Adam optimizer also supports the following two params keys/values in addition to the standard parameters from [torch.optim.Adam](https://pytorch.org/docs/stable/_modules/torch/optim/adam.html#Adam):
+
 | "params" key  | Description                                                                 | Default |
 | ------------- | --------------------------------------------------------------------------- | --------|
 | torch\_adam   | Use torch's implementation of adam instead of our fused adam implementation | false   |