fix(sdk): removing deprecating param from our sdk and docs changes with it (#4740)

docs/integrations/openai-agents-sdk.mdx

@@ -45,7 +45,7 @@ mem0 = MemoryClient()
 @function_tool
 def search_memory(query: str, user_id: str) -> str:
     """Search through past conversations and memories"""
-    memories = mem0.search(query, user_id=user_id, limit=3)
+    memories = mem0.search(query, user_id=user_id, top_k=3)
     if memories and memories.get('results'):
         return "\n".join([f"- {mem['memory']}" for mem in memories['results']])
     return "No relevant memories found."
@@ -215,7 +215,7 @@ Customize memory behavior:
 memories = mem0.search(
     query="travel preferences",
     user_id="alex",
-    limit=5  # Number of memories to retrieve
+    top_k=5  # Number of memories to retrieve
 )
 
 # Add metadata to memories