Add deep learning course

Author: QuantumLiu

README.md

@@ -27,7 +27,9 @@ TensorLayerX has extensive documentation for both beginners and professionals.
 
 [![English Documentation](https://img.shields.io/badge/documentation-english-blue.svg)](https://tensorlayerx.readthedocs.io/en/latest/)
 
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+# DeepLearning course  
+🔥We have opened a video course for introductory learning deep learning, with example codes based on TensorLayerX.  
+[Bilibili link](https://www.bilibili.com/video/BV1xB4y1h7V2?share_source=copy_web&vd_source=467c17f872fcde378494433520e19999)
 # Design Features
 
 Compare with [TensorLayer](https://github.com/tensorlayer/TensorLayer), [TensorLayerX](http://tensorlayerx.readthedocs.io)（TLX) is a brand new seperated project for platform-agnostic purpose.