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README.md

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 **RM-PRT** is a Robotic Manipulation with Progressive Reasoning Tasks benchmark based on a realistic robotic manipulation simulator. Specifically, the RM-PRT benchmark builds a new high-fidelity digital twin scene based on Unreal Engine 5, which includes 782 categories, 2023 objects, and 15K natural language instructions generated by ChatGPT for a detailed evaluation of robot manipulation.
 
 ![Simulator](./imgs/Simulator.jpg)
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+## Simulator Details
+You can see details about our simulator through these [files](https://drive.google.com/drive/folders/1jLXAU9eHE6rcpLtohepGlb654mUbA4KR?usp=sharing):
+* GrabSim_pb2.py & GrabSim_pb2_grpc.py: API for interacting with the simulator
+* SIM API.pdf: API introduction
+* SYSU_sim_test.py: Examples for API using
+* 
 ## Getting Started
 
 ```bash