add 1.6 to version table

Author: illagrenan

README.rst

@@ -40,7 +40,7 @@ Supported versions of Tensorflow
 +-----------------------+--------------------------------------------------------+----------------------------------------------------------------------------------------+
 | ``tensorflow~=1.5.0`` | TBA                                                    | `https://pypi.org/.../1.5.0 <https://pypi.org/project/tensorflow-serving-api/1.5.0/>`_ |
 +-----------------------+--------------------------------------------------------+----------------------------------------------------------------------------------------+
-| ``tensorflow~=1.6.0`` | TBA                                                    | `https://pypi.org/.../1.6.0 <https://pypi.org/project/tensorflow-serving-api/1.6.0/>`_ |
+| ``tensorflow~=1.6.0`` | ``pip install 'tensorflow-seving-api-python3~=1.6.0'`` | `https://pypi.org/.../1.6.0 <https://pypi.org/project/tensorflow-serving-api/1.6.0/>`_ |
 +-----------------------+--------------------------------------------------------+----------------------------------------------------------------------------------------+
 | ``tensorflow~=1.7.0`` | TBA                                                    | `https://pypi.org/.../1.7.0 <https://pypi.org/project/tensorflow-serving-api/1.7.0/>`_ |
 +-----------------------+--------------------------------------------------------+----------------------------------------------------------------------------------------+