Update README.md

README.md

@@ -214,7 +214,7 @@ I want to generate an image of a cat with a gray background.
 {"name": "generate_image", "arguments": {"prompt": "a cat with a gray background"}}  
 </tool_call>
 <tool_call>  
-{"name": "send_to_discord", "arguments": {"message": "", "attachments": ["$1"]}}  
+{"name": "send_to_discord", "arguments": {"message": "", "attachments": ["image.png"]}}  
 </tool_call>
 ```