IVGCVSW-5682 Add Deprecation Notification

 * For Quantizer, Tensorflow Parser and Caffe Parser

Signed-off-by: Jan Eilers <jan.eilers@arm.com>
Change-Id: If30daa54947c417c0d700f11e630546b1745b72e
diff --git a/docs/01_01_parsers.dox b/docs/01_01_parsers.dox
index 94386f1..025858e 100644
--- a/docs/01_01_parsers.dox
+++ b/docs/01_01_parsers.dox
@@ -28,6 +28,8 @@
 messages, then try upgrading your model to the latest format using Caffe, either by saving it to a new file or using
 the upgrade utilities in `caffe/tools`.
 
+\b NOTE: The Arm NN Caffe Parser is deprecated in Arm NN 21.02 and will be removed in 21.05.
+
 ## Caffe layers supported by the Arm NN SDK
 This reference guide provides a list of Caffe layers the Arm NN SDK currently supports.
 
@@ -229,6 +231,8 @@
 
 `armnnTfParser` is a library for loading neural networks defined by TensorFlow protobuf files into the Arm NN runtime.
 
+\b NOTE: The Arm NN Tensorflow Parser is deprecated in Arm NN 21.02 and will be removed in 21.05.
+
 ## TensorFlow operators that the Arm NN SDK supports
 
 This reference guide provides a list of TensorFlow operators the Arm NN SDK currently supports.