Update README.md

Author: Ar-Ray-code

README.md

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 # paa5160e1_ros2_driver
 ROS 2 driver for PAA5160E1-Q (Optical Tracking Chip)
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+<img width="1190" height="750" alt="Screenshot from 2025-10-07 22-41-49" src="https://github.com/user-attachments/assets/68ebf34c-b82a-4701-ba9a-7faf24c98e22" />
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+## Reference
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+https://github.com/sparkfun/SparkFun_Qwiic_OTOS_Arduino_Library