add tf 1.6.0 for ubuntu

Former-commit-id: 3724bc5aeb621385be64c0d20568db11edfb7111

Author: lakshayg

README.md

@@ -29,6 +29,7 @@ pip install --ignore-installed --upgrade "Download URL"
 | 1.4.1    | CPU | macOS Sierra | clang-900.0.39.2   | 3.6.1       | AVX, SSE4.1, SSE4.2                       | [Download](https://github.com/lakshayg/tensorflow-build/releases/download/v1.4.1-macosx_10_12-py27-py36-avx-sse41-sse42/tensorflow-1.4.1-cp36-cp36m-macosx_10_12_x86_64.whl) |
 | 1.5.0    | CPU | macOS High Sierra | clang-900.0.39.2   | 3.6.4       | SSE4.2, AVX, AVX2, FMA                        | [Download](https://github.com/lakshayg/tensorflow-build/raw/53f39575cdd0912e561a67f0afe844ff4b8ef655/tensorflow-1.5.0-cp36-cp36m-macosx_10_13_x86_64.whl) |
 | 1.5.0    | CPU | macOS High Sierra | clang-900.0.39.2   | 3.6.4       | AVX, SSE4.1, SSE4.2                        | [Download](https://github.com/lakshayg/tensorflow-build/raw/master/tensorflow-1.5.0-cp36-cp36m-macosx_10_13_x86_64.whl) |
+| 1.6.0    | CPU | Ubuntu 16.04      | 5.4                | 2.7.12      | SSE4.1, SSE4.2, AVX, AVX2, FMA             | [Download](https://github.com/lakshayg/tensorflow-build/releases/download/v1.6.0-ubuntu_16_04-py27-avx-avx2-fma-sse41-sse42/tensorflow-1.6.0-cp27-cp27mu-linux_x86_64.whl) |
 
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