Update README.md (#234)

expanded on system requirements (storage)

Author: Godspeed-exe

README.md

@@ -24,7 +24,8 @@ It includes explanations about the Architecture, how to build and run the compon
 Since [Yaci-Store](https://github.com/bloxbean/yaci-store) is a comparatively lightweight indexer, the system requirements are lower than for other chain indexers. The following are the recommended system requirements for running this component:
 - 4CPU Cores
 - 32GB RAM
-- 400GB of storage
+- 1TB of storage (PRUNING_ENABLED=false) [default]
+- 400GB of storage (PRUNING_ENABLED=true)
 
 Better hardware will improve the performance of the indexer and the node, which will result in faster syncing times.
 
@@ -93,4 +94,4 @@ This will start:
 Adjustments can be made by changing `.env.docker-compose` file. For more information on the environment variables, please refer to the [Wiki](https://github.com/cardano-foundation/cardano-rosetta-java/wiki/5.-Environment-Variables).
 
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-Thanks for visiting us and enjoy :heart:!
+Thanks for visiting us and enjoy :heart:!