IVGCVSW-6372 Change order in doxygen tree view

Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>
Change-Id: Ia765d335ef998e7e47a1c0c81a375645972f4e1d
diff --git a/docs/03_build_guides.dox b/docs/03_build_guides.dox
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+/// Copyright (c) 2021 ARM Limited and Contributors. All rights reserved.
+///
+/// SPDX-License-Identifier: MIT
+///
+
+namespace armnn
+{
+/**
+@page buildguides Build Guides
+@tableofcontents
+
+This page links all guides to build and/or install Arm NN tools hosted in our repository.
+You can find additional tutorials on
+https://developer.arm.com/solutions/machine-learning-on-arm/developer-material/how-to-guides
+
+Arm NN is written using portable C++14 and the build system uses [CMake](https://cmake.org/), therefore it is possible
+to build for a wide variety of target platforms, from a wide variety of host environments.
+
+Arm NN is managed by a single CMake project. That allows you to build multiple tools at once by combining the CMake
+options from different build guides.
+
+## Installation via APT Repository
+ - @subpage md_InstallationViaAptRepository
+
+## TfLite Delegate build guide
+ - @subpage md_delegate_BuildGuideNative
+
+## Android NDK and Arm NN
+ - @subpage md_BuildGuideAndroidNDK
+
+## Crosscompile Guide for Arm NN
+ - @subpage md_BuildGuideCrossCompilation
+
+**/
+}
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