Update Estimator README.md

- Issues should be filed on main TensorFlow repo
  github.com/tensorflow/tensorflow
- Removing some version strings from README. This README
  probably won't receive as much attention as TF's and we
  don't want it getting out of date.

PiperOrigin-RevId: 223404189

README.md

@@ -12,7 +12,7 @@ See our Estimator [getting started guide](https://www.tensorflow.org/guide/estim
 
 ## Installation
 
-`tf.Estimator` is installed when you install the TensorFlow pip package. See [Installing TensorFlow](https://www.tensorflow.org/get_started/os_setup.html) for instructions.
+`tf.estimator` is installed when you install the TensorFlow pip package. See [Installing TensorFlow](https://www.tensorflow.org/get_started/os_setup.html) for instructions.
 
 ## Developing
 
@@ -22,23 +22,26 @@ If you want to build TensorFlow Estimator locally, you will need to [install Baz
 # To build TensorFlow Estimator whl file.
 bazel build //tensorflow_estimator/tools/pip_package:build_pip_package
 bazel-bin/tensorflow_estimator/tools/pip_package/build_pip_package /tmp/estimator_pip
-pip install /tmp/estimator_pip/tensorflow_estimator-1.10.0-py2-none-any.whl
 
 # To run all Estimator tests
 bazel test //tensorflow_estimator/...
 ```
 
 ## Contribution guidelines
 
-**If you want to contribute to TensorFlow Estimator, be sure to review the [contribution
-guidelines](CONTRIBUTING.md).**
+If you want to contribute to TensorFlow Estimator, be sure to review the [contribution
+guidelines](CONTRIBUTING.md).
 
-**We use [GitHub issues](https://github.com/tensorflow/estimator/issues) for
-tracking requests and bugs. So please see
-[TensorFlow Discuss](https://groups.google.com/a/tensorflow.org/forum/#!forum/discuss) for general questions
-and discussion, and please direct specific questions to [Stack Overflow](https://stackoverflow.com/questions/tagged/tensorflow).**
+**Note that this repository is included as a component of the main TensorFlow
+package, and any issues encountered while using Estimators should be filed under
+[TensorFlow GitHub Issues](https://github.com/tensorflow/tensorflow/issues),
+as we do not separately track issues in this repository. You can link this
+repository in any issues created as necessary.**
 
-The TensorFlow project strives to abide by generally accepted best practices in open-source software development:
+Please see
+[TensorFlow Discuss](https://groups.google.com/a/tensorflow.org/forum/#!forum/discuss) for general questions
+and discussion and please direct specific questions to
+[Stack Overflow](https://stackoverflow.com/questions/tagged/tensorflow).
 
 ## License