generate docs on the css3 images module.

doc-src/content/reference/compass/css3/images.haml

@@ -0,0 +1,16 @@
+--- 
+title: Compass Images
+crumb: Images
+framework: compass
+stylesheet: compass/css3/_images.scss
+meta_description: Specify linear gradients and radial gradients for many browsers.
+layout: core
+classnames:
+  - reference
+  - core
+  - css3
+---
+- render 'reference' do
+  %p
+    Provides mixins that work across many modern browsers with the latest
+    CSS3 image rendering primitives.