fix video link v1

documentation/Blendercam Installation.md

@@ -9,7 +9,7 @@ The easiest way to "install" is not to install but instead just tell Blender whe
 If you are using Arch Linux, you can just install `blendercam-git` from the AUR and skip to [Enable Blendercam add-on](#enable-blendercam-add-on). OpenCAMLib is also available as `opencamlib-git`.
 
 
-![HowTo Video](images/HowToInstall.mp4)
+[![How To Install on Linux](http://img.youtube.com/vi/7_Qq8Zv4SEo/0.jpg)](http://www.youtube.com/watch?v=7_Qq8Zv4SEo)
 
 * [1. Obtaining Blender](#obtaining-blender)
 * [2. Get Blendercam source code](#get-blendercam-source-code)