Add README to utilize the VMBC Ethers related Samples

Signed-off-by: Bala Siva Sai Akhil Malepati <[email protected]>

Author: saiakhil2012

vmbc-ethers-samples/README.md

@@ -0,0 +1,88 @@
+## VMBC Ethers Sample DApps
+
+### Table of Contents
+1. [Overview](#overview)
+2. [Prerequisites](#prerequisites)
+3. [Deploying Contract using Hardhat](#deploying-contract-using-hardhat)
+4. [Sample 1 - Get Greeting](#sample-1---get-greeting)
+5. [Sample 2 - Set Greeting](#sample-2---set-greeting)
+6. [Sample 3 - Data Copy](#sample-3---data-copy)
+7. [Sample 4 - Batching](#sample-4---batching)
+
+### Overview
+Samples for using VMBC Ethers
+
+### Prerequisites
+* Deploy VMware Blockchain
+* Install npm packages
+```sh
+# For hardhat related config
+npm install
+cd sample-dapps
+# For sample dapps
+npm install
+```
+
+### Deploying Contract using Hardhat
+Following command uses `vmbc` network from inside the file `hardhat.config.js`
+```sh
+npx hardhat run --network vmbc scripts/deploy.js
+```
+Note: Make a note of Contract Address of Greetings Smart Contract from the output of above command
+
+---
+
+### Sample 1 - Get Greeting
+#### Overview
+* This sample depicts way to use view functions of deployed smart contracts
+#### Setup
+* Update the `CONTRACT_ADDRESS` to the contract address received from Deploying usin Hardhat step
+#### Executing
+```sh
+node 1_get_greetings.js
+```
+
+---
+
+### Sample 2 - Set Greeting
+#### Overview
+* This sample depicts way to call any write based functions of deployed smart contracts
+#### Setup
+* Update the `CONTRACT_ADDRESS` to the contract address received from Deploying usin Hardhat step
+* Update the `PRIVATE_KEY_ACC` to the private key of an account
+#### Executing
+```sh
+node 2_set_greetings.js
+```
+
+---
+
+### Sample 3 - Data Copy
+#### Overview
+* This sample depicts following aspects,
+  * Compiling a Smart Contracts in JavaScript using `solc`
+  * Deploying the Smart Contract
+  * Interacting with programatically deployed Smart Contracts
+#### Setup
+* Update the `PRIVATE_KEY_ACC` to the private key of an account
+#### Executing
+```sh
+node 3_data_copy.js
+```
+
+---
+
+### Sample 4 - Batching
+#### Overview
+* This sample depicts following aspects,
+  * Batching of multiple read based calls
+  * Batching of multiple write based transactions
+#### Setup
+* Update `ACCOUNT_1`, `ACCOUNT_2`, `ACCOUNT_3` and `ACCOUNT_4` to the account addresses for 4 accounts 
+* Update the corresponding `PRIVATE_KEY_ACC_1` and `PRIVATE_KEY_ACC_3` to the private key of those two accounts
+#### Executing
+```sh
+node 4_batching.js
+```
+
+---