Update src/prompts.py

src/prompts.py

@@ -283,8 +283,7 @@ Return only the JSON object. Do not provide explanations, markdown, or additiona
 
 def list_to_string(l, key, indent, result=""):
     spacing = "  " * indent
-    for i in l:
-        result += f"{spacing}{spacing}{spacing}{spacing}-{i}\n\n"
+    result += f"{spacing*4}-" + ", ".join(l) + "\n\n"
             
     return result