updates readme with demo link.

Author: jomurgel

README.md

@@ -1,2 +1,19 @@
+<img src="https://user-images.githubusercontent.com/5230729/33617107-17ebf23c-d99c-11e7-8aa6-ec559bd23027.png" alt="project acorn" title="project acorn" width="40" />
+
 # acorn.css
-A minimal classless CSS framework.
+A minimal (opinionated) classless CSS framework.
+
+- [Demo](https://jomurgel.github.io/acorn.css/)
+
+## Contents
+I've attempted to include base styles for all major HTML5 elements  with 100% [W3C](https://validator.w3.org/) compliance.
+
+This framework uses no classes, though does lean a bit on data attributes which is typically easier to work with especially when working with JavaScript also. My preference, you don't need to like it.
+
+This framework supports native dark/light mode out of the box, but nothing has been built to toggle between the two.
+
+The demo includes everything you might need for content elements, images and media, form, interactive, and table elements.
+
+Additional information found at the [https://jomurgel.github.io/acorn.css/#info](bottom), some FYIs, some gotchas.
+
+More to come.