fix: fix the prompt in the prompt

README.md

@@ -154,7 +154,7 @@ To use `ReaderLM-v2` locally:
            instruction = "Extract the main content from the given HTML and convert it to Markdown format."
        if schema:
            instruction = "Extract the specified information from a list of news threads and present it in a structured JSON format."
-           prompt = f"{instruction}\n```html\n{text}\n```\nThe JSON schema is as follows:```json{schema}```"
+           prompt = f"{instruction}\n```html\n{text}\n```\nThe JSON schema is as follows:```json\n{schema}\n```"
        else:
            prompt = f"{instruction}\n```html\n{text}\n```"