Added correct usage text

main.py

@@ -83,7 +83,8 @@ def content_from_stream(stream: bytearray) -> str:
 
 if __name__ == "__main__":
     if (len(argv) < 2):
-        print('Usage: python main.py "Server name" 127.0.0.1')
+        print('Usage: python main.py <name> [ip-address] [file-name] [port]')
+        print('Example: python main.py "Server name" 127.0.0.1')
         exit(1)
     print(f"Creating file using arguments '{', '.join(argv[1:])}'")
     try: