Update README.md

Author: BigNoobWasTaken

README.md

@@ -2,3 +2,8 @@
 This machine learning library using [Tensor-Array](https://github.com/Tensor-Array/Tensor-Array) library
 
 This project is still in alpha version, we are trying to make this look like the main framework but it is easier to code.
+
+## How to install Tensor-Array python version.
+```shell
+$ pip install TensorArray
+```