update release links

Author: leigh-johnson

README.md

@@ -3,39 +3,35 @@
 
 ## Raspbery Pi
 
-The [TensorFlow team](https://www.tensorflow.org/install/pip) provides official wheel for Python3.5 on Raspberry Pi 1-3 and Pi Zero. All other wheels were [built from source](https://www.tensorflow.org/install/source_rpi). 
+The [TensorFlow team](https://www.tensorflow.org/install/pip) provides an official wheel for Python3.5 on Raspberry Pi 1-3 and Pi Zero. All other wheels were [cross-compiled from source](https://www.tensorflow.org/install/source_rpi). 
 
 
-| Raspberry Pi | Python | Arch    | URL                                                                                               |
+| Raspberry Pi | Python | Arch    | TensorFlow wheel                                                                                             |
 |--------------|--------|---------|---------------------------------------------------------------------------------------------------|
 | Pi Zero      | 3.5    | arm6l   | [2.3.0](https://storage.googleapis.com/tensorflow/raspberrypi/tensorflow-2.3.0-cp35-none-linux_armv6l.whl) |
 | Pi 2, 3      | 3.5    | arm7l   | [2.3.0](https://storage.googleapis.com/tensorflow/raspberrypi/tensorflow-2.3.0-cp35-none-linux_armv7l.whl) |
-| Pi 4         | 3.7    | arm7l   | [2.4.0rc0](https://github.com/leigh-johnson/tensorflow-arm-bin/releases/download/2.4-rc0/tensorflow-2.4.0rc0-cp37-none-linux_armv7l.whl)                                                                                                  |
-| Pi 4         | 3.7    | aarch64 | [2.4.0rc0](https://github.com/leigh-johnson/tensorflow-arm-bin/releases/download/2.4-rc0/tensorflow-2.4.0rc0-cp37-none-linux_aarch64.whl)                                                                                                 |
+| Pi 4         | 3.7    | arm7l   | [2.4.0rc0](https://github.com/bitsy-ai/tensorflow-arm-bin/releases/download/2.4-rc0/tensorflow-2.4.0rc0-cp37-none-linux_armv7l.whl), [2.3.1](https://github.com/bitsy-ai/tensorflow-arm-bin/releases/download/2.3.1/tensorflow-2.3.1-cp37-none-linux_armv7l.whl)                                                                                                  |                                                                                                  |
+| Pi 4         | 3.7    | aarch64 | [2.4.0rc0](https://github.com/bitsy-au/tensorflow-arm-bin/releases/download/2.4-rc0/tensorflow-2.4.0rc0-cp37-none-linux_aarch64.whl), [2.3.1](https://github.com/bitsy-ai/tensorflow-arm-bin/releases/download/2.3.1/tensorflow-2.3.1-cp37-none-linux_aarch64.whl)                                                                                                 |
 | Pi 4         | 3.8    | aarch64 |                                                                                                   |
 |              |        |         |                                                                                                   |
 
-[tensorflow-2.3.0-cp35-none-linux_armv6l.whl](https://storage.googleapis.com/tensorflow/raspberrypi/tensorflow-2.3.0-cp35-none-linux_armv6l.whl)
 
-https://storage.googleapis.com/tensorflow/raspberrypi/tensorflow-2.3.0-cp35-none-linux_armv7l.whl
 
+### Build commands
 
-
-* arm7l
-
-```
+arm7l
+```bash
 $ tensorflow/tools/ci_build/ci_build.sh PI-PYTHON37 \
     tensorflow/tools/ci_build/pi/build_raspberry_pi.sh
 ```
 
-* aarch64
-
-```
+aarch64
+```bash
 $ tensorflow/tools/ci_build/ci_build.sh PI-PYTHON37 \
     tensorflow/tools/ci_build/pi/build_raspberry_pi.sh AARCH64
 ```
 
-```
+```bash
 $ tensorflow/tools/ci_build/ci_build.sh PI-PYTHON38 \
     tensorflow/tools/ci_build/pi/build_raspberry_pi.sh AARCH64
 ```