Docs: Revising Graphics page and adding related images.

Bug: 13785467
Change-Id: I52878af8823a322e4311c3d1b6e3279d824e39d5

Conflicts:
	src/index.jd
diff --git a/src/devices/graphics/architecture.jd b/src/devices/graphics/architecture.jd
index 6842dd7..75623cc 100644
--- a/src/devices/graphics/architecture.jd
+++ b/src/devices/graphics/architecture.jd
@@ -1,4 +1,4 @@
-page.title=Architecture
+page.title=Graphics architecture
 @jd:body
 
 <!--