Update README.md

Author: mozanunal

README.md

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 # micropython-mpu6050-mqtt-streamer
 Micropython software for ESP8266 and MPU6050. Data is gathered from mpu and stream to mqtt server
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+[![Demo](https://img.youtube.com/vi/5v9RwN818p8/0.jpg)](https://www.youtube.com/watch?v=5v9RwN818p8)
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+- For sensor code please look at **sensor** folder.
+- For browser based visualizer code please visit **visulizer** folder.
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+[mozanunal.com](mozanunal.com)
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