Updated CreateFromImage (markdown)

CreateFromImage.md

@@ -1,9 +1,9 @@
 ## Overview
 The CreateFromImage command is used to build terrain from large heightmaps. Heightmaps can be generated using software like [WorldMachine](http://www.world-machine.com/) and [GeoGlyph](http://www.quadspinner.com/geoglyph/) or found online. 
 
-Example: 
+Image: 
 [![CFI TEST](https://i.imgur.com/qUjm3hv.jpg)](https://i.imgur.com/qUjm3hv.jpg)
-Videos: 
+Videos Tests: 
  - https://www.youtube.com/watch?v=pPR-w6cRNTc
  - https://www.youtube.com/watch?v=cJZk1GTig7A
 
@@ -16,9 +16,13 @@ Dependencies:
  - `[arg]` - An optional parameter     
  - `<arg1|arg2>` - Multiple parameters options     
  - `<arg=value>` - Default or suggested value     
+## Terminology
+ - [`Height Map`](http://i.imgur.com/qCd30MR.jpg) - The HSL luminance (whiteness) of each pixel represents the terrain height.
+ - [`Color Map`](http://i.imgur.com/vJYinIU.jpg) - An image of terrain color
+ - [`Image Mask`](http://i.imgur.com/kQdfO6T.png) - Restrict some operation to the white parts of the image mask
 
 ## Starting
-To begin you need to either specify a heightmap to use (imgur link), or the dimensions you want.
+To begin you need to either specify a heightmap to use, or the dimensions you want.
  - Using a heightmap: `/2 cfi <url>`
  - Or using a fixed size: `/2 cfi <width> <length>`