MLBEDSW-2411: Update README with example networks

 - Added reference to TensorFlow Hub
 - Updated relative .md links to release location

Signed-off-by: Tim Hall <tim.hall@arm.com>
Change-Id: I7f7b3508bd530d76681d25594ea7ff8241fe964d

1 files changed, 19 insertions, 10 deletions

diff --git a/README.md b/README.md
index 9496f141..56e3d443 100644
--- a/README.md
+++ b/README.md
@@ -4,17 +4,20 @@ This tool is used to compile a
 [TensorFlow Lite for Microcontrollers](https://www.tensorflow.org/lite/microcontrollers)
 neural network model into an optimised version that can run on an embedded
 system containing an
-[Ethos-U55 NPU](https://www.arm.com/products/silicon-ip-cpu/ethos/ethos-u55).
+[Arm Ethos-U NPU](https://www.arm.com/products/silicon-ip-cpu).
+
+In order to be accelerated by the Ethos-U NPU the network operators must be
+quantised to either 8-bit (unsigned or signed) or 16-bit (signed).
 
 The optimised model will contain TensorFlow Lite Custom operators for those
-parts of the model that can be accelerated by the Ethos-U55.  Parts of the model
-that cannot be accelerated are left unchanged and will instead run on the
+parts of the model that can be accelerated by the Ethos-U NPU.  Parts of the
+model that cannot be accelerated are left unchanged and will instead run on the
 Cortex-M series CPU using an appropriate kernel (such as the
 [Arm](https://www.arm.com) optimised
 [CMSIS-NN](https://github.com/ARM-software/CMSIS_5/tree/develop/CMSIS/NN)
 kernels).
 
-After compilation the optimised model can only be run on an Ethos-U55 NPU
+After compilation the optimised model can only be run on an Ethos-U NPU
 embedded system.
 
 The tool will also generate performance estimates (EXPERIMENTAL) for the
@@ -111,7 +114,7 @@ version with a `_vela.tflite` file prefix, along with the performance estimate
 (EXPERIMENTAL) CSV files, all to the output directory.
 
 If you use the `pipenv` virtual environment tool then first start by spawning a
-shell in the virtual environment.:
+shell in the virtual environment:
 
 ```bash
 pipenv shell
@@ -152,11 +155,17 @@ vela --help
 ```
 
 Information about all of Vela's CLI options as well as the system configuration
-file format can be found in [Vela Options](OPTIONS.md)
+file format can be found in [Vela Options](OPTIONS.md).
+
+## Example Networks
+
+Some example networks that contain quantised operators which can be compiled by
+Vela to run on the Ethos-U NPU can be found at:
+<https://tfhub.dev/s?deployment-format=lite&q=quantized>
 
 ## Testing
 
-Please see [Vela Testing](TESTING.md)
+Please see [Vela Testing](TESTING.md).
 
 ## Contributions
 
@@ -174,9 +183,9 @@ Please see [Vela Releases](RELEASES.md).
 
 Additional useful information:
 
-* [Arm Products: Ethos-U55](https://www.arm.com/products/silicon-ip-cpu/ethos/ethos-u55)
-* [Arm Developer: Ethos-U55](https://developer.arm.com/ip-products/processors/machine-learning/ethos-u55)
+* [Arm Products: Ethos-U55 NPU](https://www.arm.com/products/silicon-ip-cpu/ethos/ethos-u55)
+* [Arm Developer: Ethos-U55 NPU](https://developer.arm.com/ip-products/processors/machine-learning/ethos-u55)
 
 ## License
 
-Vela is licensed under [Apache License 2.0](LICENSE.txt)
+Vela is licensed under [Apache License 2.0](LICENSE.txt).