user pref setup

Using-Blendercam-from-github.md

@@ -4,4 +4,10 @@ The easiest way to install is not to install but tell Blender where to find the
 
 The first step is to get the source code from the github repository.
 
-The second step is to tell blender to also search an alternate path for addons.
+The second step is to tell blender to also search an alternate path for addons.
+![user file preferences](https://cloud.githubusercontent.com/assets/648108/12068198/e83ba6a6-afde-11e5-8b30-861efd71c700.png)
+  * **1** - select **User Preferences** panel
+  * **2** - select **File** tab
+  * **3** - select the file button on the **Scripts** input field and select the path to your *blendercam/scripts* directory
+  * **4** - select **Save User Setting**
+  * **5** - restart Blender