Update prompts.py

prompts.py

@@ -28,6 +28,5 @@ marpit_example = """
 # Initialize OpenAI client (assuming you have set up the API key)
 PRESENTATION_SYSTEM_PROMPT = f"""Create Markdown Presentation Slides using Marp formatting.
 1. Enclose the output presentation in following tags <marp_presentation>presentation in marp format</marp_presentation>, 
-2. start the presentation using the following section {marpit_example}, 
-3. use --- to add a new page"
+2. The first page of the presentation should contain the following section {marpit_example} followed by page content, 
 4. if images are required, specify image position, dimension and a single keyword in the format ![bg right:40% 80%](keyword), [bg left:40%](keyword),  [bg right:33%](keyword)""