docs: add contract creation example with direct bytecode usage

Signed-off-by: dosi <dosi.kolev@limechain.tech>

Author: Dosik13

examples/contract_create_with_bytecode.py

@@ -0,0 +1,80 @@
+"""
+Example demonstrating contract creation on the network.
+
+This module shows how to create a smart contract by:
+1. Setting up a client with operator credentials
+2. Creating a contract using the bytecode
+
+Usage:
+    # Due to the way the script is structured, it must be run as a module
+    # from the project root directory
+
+    # Run from the project root directory
+    python -m examples.contract_create_with_bytecode
+
+"""
+
+import os
+import sys
+
+from dotenv import load_dotenv
+
+from hiero_sdk_python import AccountId, Client, Network, PrivateKey
+from hiero_sdk_python.contract.contract_create_transaction import (
+    ContractCreateTransaction,
+)
+from hiero_sdk_python.response_code import ResponseCode
+
+# Import the bytecode for a basic smart contract (SimpleContract.sol) that can be deployed
+# The contract bytecode is pre-compiled from Solidity source code
+from .contracts import SIMPLE_CONTRACT_BYTECODE
+
+load_dotenv()
+
+
+def setup_client():
+    """Initialize and set up the client with operator account"""
+    network = Network(network="testnet")
+    client = Client(network)
+
+    operator_id = AccountId.from_string(os.getenv("OPERATOR_ID"))
+    operator_key = PrivateKey.from_string(os.getenv("OPERATOR_KEY"))
+    client.set_operator(operator_id, operator_key)
+
+    return client
+
+
+def contract_create_with_bytecode():
+    """
+    Demonstrates creating a contract on the network by:
+    1. Setting up client with operator account
+    2. Creating a contract using the bytecode
+    """
+    client = setup_client()
+
+    # Convert the contract bytecode from hex string to bytes format
+    # This is required because set_bytecode() expects bytes, not a hex string
+    bytecode = bytes.fromhex(SIMPLE_CONTRACT_BYTECODE)
+
+    # Create contract using the bytecode
+    receipt = (
+        ContractCreateTransaction()
+        .set_bytecode(bytecode)
+        .set_gas(2000000)  # 2M gas
+        .set_contract_memo("My first smart contract")
+        .execute(client)
+    )
+
+    # Check if contract creation was successful
+    if receipt.status != ResponseCode.SUCCESS:
+        print(
+            f"Contract creation failed with status: {ResponseCode(receipt.status).name}"
+        )
+        sys.exit(1)
+
+    contract_id = receipt.contract_id
+    print(f"Contract created successfully with ID: {contract_id}")
+
+
+if __name__ == "__main__":
+    contract_create_with_bytecode()