message: Fix broken link in `tensorflow/go/README.md`
  Fix broken link in `tensorflow/go/README.md`. This is
  related to (`tensorflow/java/README.md`) but is
  in go's README.md
diff: @@ -23,9 +23,9 @@ from source.
  - [bazel](https://www.bazel.build/versions/master/docs/install.html)
  - Environment to build TensorFlow from source code
  - ([Linux](https://www.tensorflow.org/versions/master/get_started/os_setup.html#prepare-environment-for-linux)
  + ([Linux](https://www.tensorflow.org/install/install_sources#PrepareLinux)
  or [OS
  - X](https://www.tensorflow.org/versions/master/get_started/os_setup.html#prepare-environment-for-mac-os-x)).
  + X](https://www.tensorflow.org/install/install_sources#PrepareMac)).
  If you don't need GPU support, then try the following: `sh # Linux sudo
  apt-get install python swig python-numpy # OS X with homebrew brew install
  swig`
  