Update prompts/if/synthesize_solution.txt

prompts/if/synthesize_solution.txt

@@ -9,8 +9,7 @@ You must aim for the following goals:
 - The solution must aim to maximize requirement satisfaction while respecting the context.
 - Provide a list of requirements addressed by the solution (provide the requirement IDs in the requirements_ids field only)
 - Please also detail each mechanism and how they work in the final solution description.
-- Please describe the solution in the solution description field.
-- Do not forget to add lineskips between titles when describing the solution in markdown
+- Please describe the solution in the solution description field using markdown. Adding newlines between each described mechanism.
 </task>
 
 <requirements>