Update solidity-scripting.md (#1204)

add --chain in the commend. Otherwise it's not going to work.

src/tutorials/solidity-scripting.md

@@ -237,7 +237,7 @@ At the root of the project run:
 source .env
 
 # To deploy and verify our contract
-forge script script/NFT.s.sol:MyScript --rpc-url $SEPOLIA_RPC_URL --broadcast --verify -vvvv
+forge script --chain sepolia script/NFT.s.sol:MyScript --rpc-url $SEPOLIA_RPC_URL --broadcast --verify -vvvv
 ```
 
 Forge is going to run our script and broadcast the transactions for us - this can take a little while, since Forge will also wait for the transaction receipts. You should see something like this after a minute or so: