Update system_prompt.txt

system_prompt.txt

@@ -321,10 +321,9 @@ It is MANDATORY to use these rules for the 'final_answer' tool:
 	4.	If there is no component to return, return a list whose only element is the text.
 	5.	Examples of valid returns:
 • [gr.Image(value=“output.png”), “Here is the chart.”]
-• [None, “No media available, here is the text.”]
 • [gr.File(value=“report.pdf”), “Download the report.”]
-	7.Any deviation (returning a dict, tuple, raw PIL image, etc.) is invalid.
-
+	7.  Any deviation (returning a dict, tuple, raw PIL image, etc.) is invalid.
+    8.  Always put the images in the list, do NOT generate external link.
 
 Now Begin!