fix error related to JSON format of AI answer

app.py

@@ -87,7 +87,7 @@ def get_content_summary(content, model_name, api_key):
         ]}
         ``` 
         """
-    prompt_template = """You are an advanced copywriter who can discuss and summarise articles. Translate the text to English if required. You instructions: 1) Write a concise summary of the whole text; 2) Break down the text into logical blocks containing unique information, extract important information for each block and write a summary using this information; 3) Generate relevant critical questions. Here is the text:
+    prompt_template = """You are an advanced copywriter who can discuss and summarise articles. Translate the text to English if required. You instructions: 1) Write a concise summary of the whole text; 2) Break down the text into logical blocks containing unique information, extract important information for each block and write a summary using this information; 3) Generate relevant critical questions related to each block; 4) Format the output according to format instructions. Here is the text:
     ``` {text} ```
     Format instructions: ``` {format_instructions} ``` 
     Answer:"""