IVGCVSW-8232 ScatterNd added to delegate and opaque delegate

Signed-off-by: Kevin May <kevin.may@arm.com>
Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>

Change-Id: I5839f54c71f74eaa6819333393bb3054db9db5be
diff --git a/docs/05_03_delegate.dox b/docs/05_03_delegate.dox
index dde50e1..75ebf9c 100644
--- a/docs/05_03_delegate.dox
+++ b/docs/05_03_delegate.dox
@@ -172,6 +172,8 @@
 
 - RSQRT
 
+- SCATTERND
+
 - SHAPE
 
 - SIN