Updated Texassemble (markdown)

Texassemble.md

@@ -30,6 +30,8 @@ The file-name parameter indicates the file(s) to use to create the assembled ima
 
 **h-strip**, **v-strip**: Creates a horizontal/vertical strip image from an input cubemap ``dds`` file
 
+**array-strip**; Creates a horizontal strip image from an input 1D/2D array ``dds`` file.
+
 ![Cubemap image layouts](https://docs.unity3d.com/ja/current/uploads/Textures/CubeLayout6Faces.png)
 
 **merge**: Creates a texture using two input images: RGB coming from the first image, A (via the Blue channel) from the second image.