* Remove py3 from test status (#920)

* Add tfa-nightly to linux build matrix

Author: seanpmorgan

README.md

@@ -12,10 +12,10 @@
 
 | Build Type      | Status |
 | ---             | ---    |
-| **Ubuntu Py3 CPU**   | [![Status](https://github.com/tensorflow/addons/workflows/ubuntu-cpu-nightly/badge.svg)](https://github.com/tensorflow/addons/actions?query=workflow%3Aubuntu-cpu-nightly) |
-| **Ubuntu Py3 GPU**   | [![Status](https://storage.googleapis.com/tensorflow-kokoro-build-badges/addons/ubuntu-gpu-py3.svg)](https://storage.googleapis.com/tensorflow-kokoro-build-badges/addons/ubuntu-gpu-py3.html) |
-| **MacOS Py3 CPU**   | [![Status](https://github.com/tensorflow/addons/workflows/macos-nightly/badge.svg)](https://github.com/tensorflow/addons/actions?query=workflow%3Amacos-nightly) |
-| **Windows Py3 CPU**   | [![Status](https://github.com/tensorflow/addons/workflows/windows-nightly/badge.svg)](https://github.com/tensorflow/addons/actions?query=workflow%3Awindows-nightly) |
+| **MacOS CPU**   | [![Status](https://github.com/tensorflow/addons/workflows/macos-nightly/badge.svg)](https://github.com/tensorflow/addons/actions?query=workflow%3Amacos-nightly) |
+| **Windows CPU**   | [![Status](https://github.com/tensorflow/addons/workflows/windows-nightly/badge.svg)](https://github.com/tensorflow/addons/actions?query=workflow%3Awindows-nightly) |
+| **Ubuntu CPU**   | [![Status](https://github.com/tensorflow/addons/workflows/ubuntu-cpu-nightly/badge.svg)](https://github.com/tensorflow/addons/actions?query=workflow%3Aubuntu-cpu-nightly) |
+| **Ubuntu GPU**   | [![Status](https://storage.googleapis.com/tensorflow-kokoro-build-badges/addons/ubuntu-gpu-py3.svg)](https://storage.googleapis.com/tensorflow-kokoro-build-badges/addons/ubuntu-gpu-py3.html) |
 
 **TensorFlow Addons** is a repository of contributions that conform to
 well-established API patterns, but implement new functionality
@@ -59,6 +59,7 @@ import tensorflow_addons as tfa
 #### Linux Build Matrix
 | Version    | Compatible With |Python versions  | Compiler  | cuDNN | CUDA | 
 |:----------------------- |:---|:---------- |:---------|:---------|:---------|
+| tfa-nightly | tf-nightly | 3.5-3.7 | GCC 7.3.1 | 7.6 | 10.1 |
 | tensorflow-addons-0.7.0 | tensorflow>=2.1.0 | 2.7, 3.5-3.7 | GCC 7.3.1 | 7.6 | 10.1 |
 | tensorflow-addons-0.6.0 | tensorflow==2.0.0 <br> tensorflow-gpu==2.0.0 | 2.7, 3.5-3.7 | GCC 7.3.1 | 7.4 | 10.0 |
 | tensorflow-addons-0.5.2 | tensorflow==2.0.0 <br> tensorflow-gpu==2.0.0 | 2.7, 3.5-3.7 | GCC 7.3.1 | 7.4 | 10.0 |