Merge remote-tracking branch 'gitlab/master'

Author: EikanWang

README.md

@@ -15,6 +15,15 @@ Intel Extension for PyTorch is a Python package to extend official PyTorch. It i
 ## Installation
 
 ### Install PyTorch from Source
+ |IPEX Version|PyTorch Version|
+ |--|--|
+ |[v1.2.0](https://github.com/intel/intel-extension-for-pytorch/tree/v1.2.0)|[v1.7.0](https://github.com/pytorch/pytorch/tree/v1.7.0 "v1.7.0")|
+ |[v1.1.0](https://github.com/intel/intel-extension-for-pytorch/tree/v1.1.0)|[v1.5.0-rc3](https://github.com/pytorch/pytorch/tree/v1.5.0-rc3 "v1.5.0-rc3")|
+ |[v1.0.2](https://github.com/intel/intel-extension-for-pytorch/tree/v1.0.2)|[v1.5.0-rc3](https://github.com/pytorch/pytorch/tree/v1.5.0-rc3 "v1.5.0-rc3")|
+ |[v1.0.1](https://github.com/intel/intel-extension-for-pytorch/tree/v1.0.1)|[v1.5.0-rc3](https://github.com/pytorch/pytorch/tree/v1.5.0-rc3 "v1.5.0-rc3")|
+ |[v1.0.0](https://github.com/intel/intel-extension-for-pytorch/tree/v1.0.0)|[v1.5.0-rc3](https://github.com/pytorch/pytorch/tree/v1.5.0-rc3 "v1.5.0-rc3")|
+
+ Take Intel-Extension-for-Pytorch v1.2.0 as the example.
 
  1. Get PyTorch v1.7.0 source(Refer to [PyTorch guide](https://github.com/pytorch/pytorch#get-the-pytorch-source) for more details)
     ```bash