blender water shader (#23989)

* Update index.md

* correctly lowercased folder names

guide/english/3d/blender/iceberg-scene/index.md

@@ -1,14 +1,20 @@
----
-title: Blender Water Shader effect
----
-
-## This is a simple scene to render polar waters.
-
-To make the cube look like water, mix the following shaders:
-
-*Glass BSDF Shader :	Roughness = 0.850
-						IOR = 	1.010 ~ 1.333
-						Color = Blue
-*Mix Shader :	Factor = 0.500
-*Translucent BSDF Shader :	Color ~= 2B9489 (a bit dark greenish blue)
-*Transparent BSDF Shader :	Color ~= 3173C0 (bluish)
+---
+title: Blender Water Shader effect
+---
+
+# This is a simple scene to render polar waters.
+
+**_To make the cube look like water, mix the following shaders:_**
+
+1. Glass BSDF Shader :	Roughness = 0.850
+	                , IOR = 	1.010 ~ 1.333
+			and Color = Blue
+2. Mix Shader :	Factor = 0.500
+3. Translucent BSDF Shader :	Color ~= 2B9489 (a bit dark greenish blue)
+4. Transparent BSDF Shader :	Color ~= 3173C0 (bluish)
+
+
+
+<a href="http://www.youtube.com/watch?feature=player_embedded&v=4m2ldp-2fJc" target="_blank"><img src="http://img.youtube.com/vi/4m2ldp-2fJc/0.jpg" 
+alt="IMAGE ALT TEXT HERE" width="240" height="180" border="10" /></a>
+you can watch this to learn how to blender water.