update

src/content/quickstarts/ccip-cross-chain-nft.mdx

@@ -95,9 +95,17 @@ To set these variables, type the following command and follow the instructions i
 npx env-enc set
 ```
 
+```shell
+Please enter the variable name (or press ENTER to finish): 
+ARBITRUM_TESTNET_RPC_URL
+Please enter the variable value (input will be hidden): 
+*********************************************************************
+Would you like to set another variable? Please enter the variable name (or press ENTER to finish): 
+```
+
 After you are done, the `.env.enc` file will be automatically generated.
 
-If you want to validate your inputs you can always run the next command:
+If you want to validate your inputs, run the next command:
 
 ```shell
 npx env-enc view