Fix system msg

Author: pamelafox

extract_pdf_receipt.py

@@ -60,7 +60,7 @@ class Receipt(BaseModel):
 completion = client.beta.chat.completions.parse(
     model=model_name,
     messages=[
-        {"role": "system", "content": "Extract the information from the blog post"},
+        {"role": "system", "content": "Extract the information the receipt"},
         {"role": "user", "content": md_text},
     ],
     response_format=Receipt,