Update CHALLENGE.md

Author: srinathln7

docs/CHALLENGE.md

@@ -1,8 +1,8 @@
 # Ethereum Data Service
 
-## Challenge Overview
+## Objective
 
-Please write a service which uses the Ethereum JSON-RPC API to store the following information in a local datastore for the most recent 50 blocks and provide a basic API:
+To write a service which uses the Ethereum JSON-RPC API to store the following information in a local datastore for the most recent 50 blocks and provide a basic API:
 
 1. Get and store the block and all transaction hashes in the block.
 2. Get and store all events related to each transaction in each block.
@@ -11,32 +11,10 @@ Please write a service which uses the Ethereum JSON-RPC API to store the followi
    - Get block by number.
    - Get transaction by hash.
 
-### Use the following Validation Cloud endpoints for Ethereum Mainnet RPC access:
-
+### Use the following endpoints for Ethereum Mainnet RPC access:
 - HTTP: `https://mainnet.ethereum.validationcloud.io/v1/JFt58zlN7gcQlLYnMZcOD75LpethJgD6Eq5nKOxC9F0`
 - WebSocket: `wss://mainnet.ethereum.validationcloud.io/v1/wss/JFt58zlN7gcQlLYnMZcOD75LpethJgD6Eq5nKOxC9F0`
 
-### Additional Notes:
-
-- Code should be written in Go.
-- RPC Methods which might be useful: `eth_blockNumber`, `eth_getBlockByNumber`, `eth_getTransactionByHash`, `eth_getLogs`.
-- Feel free to ask us questions as you go.
-- Include a Dockerfile to compile and build your application.
-- Containerize any dependencies (e.g. databases).
-- Include a README file with instructions on how to build the container(s) and run the application.
-
-### Some inspiration for add-ons and discussion topics in our debrief:
-
-- Thought process and code design.
-- Technology choices.
-- How would you keep the data set up to date?
-- How would you expose the stored data to customers in an easy-to-query API?
-- How would you handle security of the API?
-- How would you improve the performance of your approach?
-- How would you adapt your design to store the same data for the entire history of Ethereum Mainnet?
-- What would it take to deploy and monitor a service like this in production?
-
-
 ## Project structure
 
 ```