Add deposit message

Author: m-kus

src/commands/deposit.rs

@@ -20,6 +20,6 @@ pub fn deposit(args: DepositArgs) -> Result<()> {
         args.build.mcpp_inc_path,
     )?;
     let address = create_p2tr_address(program, unspendable_key())?;
-    println!("P2TR address: {}", address);
+    println!("P2TR address: {}\n\nGo to https://liquidtestnet.com/faucet to get some testnet coins.", address);
     Ok(())
 }