Flesh out the list of includes, also fix up README markdown

Currently only pulls in 'core' and 'effects'. Will add in gpu once we add an option to render via Mesa.

BUG=skia:
R=mtklein@google.com

Author: jcgregorio@google.com

Review URL: https://codereview.chromium.org/232883004

git-svn-id: http://skia.googlecode.com/svn/trunk@14137 2bbb7eff-a529-9590-31e7-b0007b416f81
2 files changed