Add links to nightly windows wheels in installation documentation. (#…

…9006)

doc/source/installation.rst

@@ -28,25 +28,30 @@ master branch). To install these wheels, run the following command:
  pip install -U [link to wheel]
 
 
-=================== ===================
- Linux MacOS
-=================== ===================
-`Linux Python 3.8`_ `MacOS Python 3.8`_
-`Linux Python 3.7`_ `MacOS Python 3.7`_
-`Linux Python 3.6`_ `MacOS Python 3.6`_
+=================== =================== ======================
+ Linux MacOS Windows (experimental)
+=================== =================== ======================
+`Linux Python 3.8`_ `MacOS Python 3.8`_ `Windows Python 3.8`_
+`Linux Python 3.7`_ `MacOS Python 3.7`_ `Windows Python 3.7`_
+`Linux Python 3.6`_ `MacOS Python 3.6`_ `Windows Python 3.6`_
 `Linux Python 3.5`_ `MacOS Python 3.5`_
-=================== ===================
-
+=================== =================== ======================
 
 .. _`Linux Python 3.8`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp38-cp38-manylinux1_x86_64.whl
 .. _`Linux Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp37-cp37m-manylinux1_x86_64.whl
 .. _`Linux Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp36-cp36m-manylinux1_x86_64.whl
 .. _`Linux Python 3.5`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp35-cp35m-manylinux1_x86_64.whl
+
 .. _`MacOS Python 3.8`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp38-cp38-macosx_10_13_x86_64.whl
 .. _`MacOS Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp37-cp37m-macosx_10_13_intel.whl
 .. _`MacOS Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp36-cp36m-macosx_10_13_intel.whl
 .. _`MacOS Python 3.5`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp35-cp35m-macosx_10_13_intel.whl
 
+.. _`Windows Python 3.8`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp38-cp38-win_amd64.whl
+.. _`Windows Python 3.7`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp37-cp37m-win_amd64.whl
+.. _`Windows Python 3.6`: https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-0.9.0.dev0-cp36-cp36m-win_amd64.whl
+
+
 Installing from a specific commit
 ---------------------------------