added readme file
added readme file

GoogleCloudPlatform/tensorflow-without-a-phd,GoogleCloudPlatform/tensorflow-without-a-phd,GoogleCloudPlatform/tensorflow-without-a-phd,dimroc/tensorflow-mnist-tutorial,dimroc/tensorflow-mnist-tutorial,dimroc/tensorflow-mnist-tutorial,GoogleCloudPlatform/tensorflow-without-a-phd,dimroc/tensorflow-mnist-tutorial,dimroc/tensorflow-mnist-tutorial,dimroc/tensorflow-mnist-tutorial