COMPMID-1934: Doxygen online documentation errors on Firefox

Change-Id: I669d57380d95760399cd7fd28c58d0e636d706dd
Signed-off-by: Manuel Bottini <manuel.bottini@arm.com>
Reviewed-on: https://review.mlplatform.org/647
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez <pablo.tello@arm.com>
diff --git a/docs/05_functions_list.dox b/docs/05_functions_list.dox
index 9848307..777a8a2 100644
--- a/docs/05_functions_list.dox
+++ b/docs/05_functions_list.dox
@@ -1,5 +1,5 @@
 ///
-/// Copyright (c) 2018 ARM Limited.
+/// Copyright (c) 2018-2019 ARM Limited.
 ///
 /// SPDX-License-Identifier: MIT
 ///
@@ -91,7 +91,7 @@
     - @ref NEConvertFullyConnectedWeights
     - @ref NEConvolutionLayer
     - @ref NEConvolutionLayerReshapeWeights
-    - @ref NEConvolutionSquare&lt;matrix_size&gt;
+    - @ref NEConvolutionSquare &lt;matrix_size&gt;
     - @ref NEDeconvolutionLayer
     - @ref NEDepthConcatenateLayer
     - @ref NEDepthwiseConvolutionLayer
@@ -153,7 +153,7 @@
     - @ref CLConcatenateLayer
     - @ref CLConvolutionLayer
     - @ref CLConvolutionLayerReshapeWeights
-    - @ref CLConvolutionSquare&lt;matrix_size&gt;
+    - @ref CLConvolutionSquare &lt;matrix_size&gt;
     - @ref CLDeconvolutionLayer
     - @ref CLDeconvolutionLayerUpsample
     - @ref CLDepthConcatenateLayer
diff --git a/docs/Doxyfile b/docs/Doxyfile
index 34c7b00..22ce889 100644
--- a/docs/Doxyfile
+++ b/docs/Doxyfile
@@ -1,4 +1,4 @@
-# Doxyfile 1.8.9.1
+# Doxyfile 1.8.15
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
diff --git a/docs/header.html b/docs/header.html
index 1a45721..f28df2c 100644
--- a/docs/header.html
+++ b/docs/header.html
@@ -1,4 +1,5 @@
-<!-- HTML header for doxygen 1.8.9.1-->
+<!-- HTML header for doxygen 1.8.15-->
+<!-- Remember to use version doxygen 1.8.15 +-->
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>