Contribute a tutorial on building for NVIDIA Tegra (#7814)

* Contribute a tutorial on building for NVIDIA Tegra

* Clean-up and fixes based on feedback.

doc/tutorials/introduction/table_of_content_introduction.markdown

@@ -126,6 +126,14 @@ Additionally you can find very basic sample source code to introduce you to the
 
     We will learn how to setup OpenCV cross compilation environment for ARM Linux.
 
+-   @subpage tutorial_building_tegra_cuda
+
+    _Compatibility:_ \>= OpenCV 3.1.0
+
+    _Author:_ Randy J. Ray
+
+    This tutorial will help you build OpenCV 3.1.0 for NVIDIA<sup>&reg;</sup> Tegra<sup>&reg;</sup> systems with CUDA 8.0.
+
 -   @subpage tutorial_display_image
 
     _Compatibility:_ \> OpenCV 2.0