docs: add deploy command for all contract examples with clear description (axelarnetwork#130)

Author: Olanetsoft

examples/evm/call-contract-with-token-express/README.md

@@ -10,6 +10,10 @@ To deploy the contract, run the following command:
 npm run deploy evm/call-contract-with-token-express [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/call-contract-with-token-express local` or `npm run deploy evm/call-contract-with-token-express testnet`. 
+
 ### Execution
 
 To execute the example, use the following command:

examples/evm/call-contract-with-token/README.md

@@ -17,6 +17,10 @@ To deploy the contract, run the following command:
 npm run deploy evm/call-contract-with-token [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/call-contract-with-token local` or `npm run deploy evm/call-contract-with-token testnet`. 
+
 ### Execution
 
 To execute the example, use the following command:

examples/evm/call-contract/README.md

@@ -17,6 +17,10 @@ To deploy the contract, use the following command:
 npm run deploy evm/call-contract [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/call-contract local` or `npm run deploy evm/call-contract testnet`. 
+
 ### Execution
 
 To execute the example, use the following command:

examples/evm/cross-chain-lending/README.md

@@ -20,6 +20,10 @@ To execute the example, use the following command:
 npm run execute evm/cross-chain-lending [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run execute evm/cross-chain-lending local` or `npm run execute evm/cross-chain-lending testnet`. 
+
 ## Example
 
 This example runs the test on a local network.

examples/evm/cross-chain-token/README.md

@@ -17,6 +17,10 @@ To deploy the contract, use the following command:
 npm run deploy evm/cross-chain-token [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/cross-chain-token local` or `npm run deploy evm/cross-chain-token testnet`. 
+
 ### Execution
 
 To execute the example, use the following command:

examples/evm/nft-linker/README.md

@@ -17,6 +17,10 @@ To deploy the NFT Linker, run the following command:
 npm run deploy evm/nft-linker [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/nft-linker local` or `npm run deploy evm/nft-linker testnet`. 
+
 A single NFT is minted to the deployer (`0xBa86A5719722B02a5D5e388999C25f3333c7A9fb`) on each chain.
 
 ## Execution

examples/evm/nonced-execution/README.md

@@ -25,6 +25,10 @@ To deploy the contract, use the following command:
 npm run deploy evm/nonced-execution [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/nonced-execution local` or `npm run deploy evm/nonced-execution testnet`. 
+
 ### Execution
 
 To execute the example, use the following command:

examples/evm/send-ack/README.md

@@ -15,6 +15,10 @@ Make sure you've already followed the following steps:
 npm run deploy evm/send-ack [local|testnet]
 ```
 
+The aforementioned command pertains to specifying the intended environment for a project to execute on. It provides the option to choose between local and testnet environments by appending either `local` or `testnet` after the command. 
+
+An example of its usage is demonstrated as follows: `npm run deploy evm/send-ack local` or `npm run deploy evm/send-ack testnet`. 
+
 ### Execution
 
 ```bash