Documentation refactor and updates.

 * Includes updating ContributorGuide.md with information section
   'Contributing code to Arm NN'.
 * Renaming of ContributorGuide.md to CONTRIBUTING.md. Also renamed
   associated licence file and links in other pages that call the md file.

Signed-off-by: Cathal Corbett <cathal.corbett@arm.com>
Change-Id: Ic3336d78b64ae41af07ea9fd03631bb161613c4b
diff --git a/samples/serialized/Readme.md b/samples/serialized/Readme.md
index e85ae10..297d9ff 100644
--- a/samples/serialized/Readme.md
+++ b/samples/serialized/Readme.md
@@ -1,4 +1,4 @@
 # Arm NN Serialized Example model
 
-This is a really simple example of an Arm NN serialized model which is supported on Netron. It is based on SSD MobileNet V1 FP32 model available in the public model zoo (https://github.com/ARM-software/ML-zoo/tree/master/models/object_detection/ssd_mobilenet_v1/tflite_fp32), converted using the ArmnnConverter tool. The model is trained by Google and uses 300x300 input image. 
-More details on how to deploy this model using Arm NN SDK can be found here: https://developer.arm.com/documentation/102274/latest
\ No newline at end of file
+This is a really simple example of an Arm NN serialized model which is supported on Netron. It is based on SSD MobileNet V1 FP32 model available in the public model zoo (https://github.com/ARM-software/ML-zoo/tree/master/models/object_detection/ssd_mobilenet_v1/tflite_fp32), converted using the ArmnnConverter tool. The model is trained by Google and uses 300x300 input image.
+More details on how to deploy this model using Arm NN SDK can be found here: https://developer.arm.com/documentation/102274/latest.
\ No newline at end of file
diff --git a/samples/serialized/Readme.md.license b/samples/serialized/Readme.md.license
index 14e9b44..b994066 100644
--- a/samples/serialized/Readme.md.license
+++ b/samples/serialized/Readme.md.license
@@ -1,4 +1,4 @@
 #
-# Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+# Copyright © 2021-2022 Arm Ltd and Contributors. All rights reserved.
 # SPDX-License-Identifier: MIT
 #