Chore(entropy) update guide v2 (#769)

* chore(entropy) Update Guide V2 - Part1

* chore(entropy) Update Guide V2

Author: aditya520

pages/entropy/create-your-first-entropy-app.mdx

@@ -6,51 +6,58 @@ In this tutorial we will implement and deploy a coin flip contract which will us
 
 Before we start, please make sure you have the following tools installed:
 
-Foundry - [https://book.getfoundry.sh/getting-started/installation](https://book.getfoundry.sh/getting-started/installation).
+- [Foundry](https://book.getfoundry.sh/getting-started/installation).
 
-- Run `forge --version` to confirm it is installed. You should get an output similar to `forge 0.2.0 (23aa303 2023-11-28T00:35:15.730515000Z)`
-
-Node (version > 18) - [https://nodejs.org/en/download](https://nodejs.org/en/download)
-
-- Run `node -v` to confirm. You should get an output with version >= `v18.0.0`.
+- [Node](https://nodejs.org/en/download). Run `node -v{:jsx}` to confirm. You should get an output with version >= `v18.0.0`.
 
 ## Getting Started
 
-Create a directory named `coin-flip` in your filesystem. Open a terminal with `coin-flip` as the working directory and run `forge init contracts` to create a new Solidity project. You will see a new directory in `coin-flip` named `contracts`. `contracts/src` is where all your contract code will be.
+Create a directory named `coin-flip{:bash}` in your filesystem.
+We will use this directory as the working directory for the rest of the tutorial.
+Let's initialize a new project in `coin-flip{:bash}` by running `forge init contracts{:bash}`.
+
+This will create a new directory in `coin-flip{:bash}` named `contracts/src`, which will contain the smart contract code.
 
-Run `cd contracts` to make it your terminal’s working directory — the following commands will need to be run from here.
+```bash copy
+mkdir coin-flip
+cd coin-flip
+forge init contracts
+```
 
-Next, install the Pyth Entropy SDK by running the following commands.
+Now we will install the Pyth Entropy SDK in the `contracts` directory.
 
 ```bash copy
+cd contracts
 npm init -y
 npm install @pythnetwork/entropy-sdk-solidity
 ```
 
-Add a `remappings.txt` file to `contracts` directory with the following content.
+Add a `remappings.txt` file to `contracts` directory with the following content to tell Foundry where to find the Pyth Entropy SDK.
 
 ```text copy
 @pythnetwork/entropy-sdk-solidity/=node_modules/@pythnetwork/entropy-sdk-solidity
 ```
 
 ## Implementation
 
-Create a new file `CoinFlip.sol` in `contracts/src` directory and add the following code into it to start
+Create a new file `CoinFlip.sol{:solidity}` in `contracts/src` directory and add the following code into it to start.
 
 ```solidity copy
+// contracts/src/CoinFlip.sol
 // SPDX-License-Identifier: UNLICENSED
 pragma solidity ^0.8.13;
+
 import "@pythnetwork/entropy-sdk-solidity/IEntropyV2.sol";
 import "@pythnetwork/entropy-sdk-solidity/IEntropyConsumer.sol";
 
 contract CoinFlip is IEntropyConsumer {
   event FlipRequested(uint64 sequenceNumber);
   event FlipResult(uint64 sequenceNumber, bool isHeads);
 
-  IEntropy entropy;
+  IEntropyV2 entropy;
 
   constructor(address _entropy) {
-    entropy = IEntropy(_entropy);
+    entropy = IEntropyV2(_entropy);
   }
 
   // This method is required by the IEntropyConsumer interface
@@ -61,11 +68,13 @@ contract CoinFlip is IEntropyConsumer {
 
 ```
 
-The code implements a`CoinFlip` contract which inherits the `IEntropyConsumer` interface. We have also defined some events, properties and a constructor to instantiate the contract. One of the properties is of type `IEntropy` which is an interface imported from the Entropy SDK.
+The code implements a`CoinFlip` contract which inherits the `IEntropyConsumer` interface.
+We have also defined some events, properties and a constructor to instantiate the contract.
+One of the properties is of type `IEntropyV2` which is an interface imported from the Entropy SDK.
 
 ### Request a coin flip
 
-Copy the following code into `CoinFlip.sol`.
+Copy the following code into `CoinFlip.sol{:solidity}`.
 
 ```solidity copy
 contract CoinFlip {
@@ -87,11 +96,14 @@ contract CoinFlip {
 
 ```
 
-Users will invoke the `request` method to initiate a coin flip, paying a fee in the process. The method first retrieves the fee required to request a random number from Entropy. It then includes the fee in the `requestV2` method call to Entropy. Finally, the method emits a `FlipRequested` event with a `sequenceNumber`. This event is also defined in the code snippet above.
+Users will invoke the `request` method to initiate a coin flip, paying a fee in the process.
+The method first retrieves the fee required to request a random number from Entropy.
+It then includes the fee in the `requestV2{:bash}` method call to Entropy.
+Finally, the method emits a `FlipRequested{:bash}` event with a `sequenceNumber`. This event is also defined in the code snippet above.
 
 ### Handle the callback
 
-Copy the following code into `CoinFlip.sol`.
+Copy the following code into `CoinFlip.sol{:solidity}`.
 
 ```solidity copy
 contract CoinFlip {
@@ -176,7 +188,7 @@ Deployed to: 0x8676ba0Dd492AB9813BC21D5Dce318427d1d73ae
 Transaction hash: 0x2178aa6d402c94166a93e81822248d00dd003827675ebd49b3c542970f5a0189
 ```
 
-Let’s export the coin flip contract address as environment variable for later use:
+Let's export the coin flip contract address as environment variable for later use:
 
 ```bash copy
 export COINFLIP_ADDRESS=<Deployed to address from above>