update image size

Author: yanncaniouoracle

cloud-infrastructure/ai-infra-gpu/ai-infrastructure/dstack/README.md

@@ -122,6 +122,7 @@ fsdp_config:
 * `fsdp_config`: These set up how FSDP operates, such as how the model is sharded (`fsdp_sharding_strategy`) and whether parameters are offloaded to CPU (`fsdp_offload_params`).
 
 ![Hybrid shards](assets/images/image2.png "Hybrid shards")
+<img src="https://github.com/oracle-devrel/technology-engineering/blob/dstack-tutorial/cloud-infrastructure/ai-infra-gpu/ai-infrastructure/dstack/assets/images/image1.png" width="400">
 
 With the `FSDP` of `distributed_type` and `FULL_SHARD` of `fsdp_config`’s `fsdp_sharding_strategy`, a model will be sharded across multiple GPUs in a single machine. When dealing with multiple compute nodes, each node will host an identical copy of the model, which is itself split across multiple GPUs within that node. This means each partitioned model instance on each node processes different sections or batches of your dataset. To distribute a single model across multiple GPUs spanning across multiple nodes, configure the parameter `fsdp_sharding_strategy` as `HYBRID_SHARD`.