README update

Author: geoffp

README.md

@@ -1,2 +1,23 @@
 # patternengine-node-react
-The React engine for Patternlab/Node
+The (**very preliminary almost not-working-at-all**) React engine for Patternlab/Node
+
+## Status
+You can author standalone React components that include only the main React module, which I know isn't much yet. We're still working out how React components will resolve and load the modules they depend on, including other patterns. We believe this is tricky, but doable.
+
+## Supported features
+Kind of nothing works yet. **Very early in development.**
+
+- [ ] [Includes](http://patternlab.io/docs/pattern-including.html)
+- [ ] Lineage
+- [ ] [Hidden Patterns](http://patternlab.io/docs/pattern-hiding.html)
+- [ ] [Pseudo-Patterns](http://patternlab.io/docs/pattern-pseudo-patterns.html)
+- [ ] [Pattern States](http://patternlab.io/docs/pattern-states.html)
+- [ ] [Pattern Parameters](http://patternlab.io/docs/pattern-parameters.html)
+- [ ] [Style Modifiers](http://patternlab.io/docs/pattern-stylemodifier.html)
+
+## Usage
+
+* `*.jsx` files are detected as patterns.
+* Standard pattern JSON is passed into React components as props.
+* We currently assume the React include (and others, once we figure that out) are written using es2015 module syntax.
+* The Babel transforms are currently hard-coded into the engine, but we hope to make this configurable in the future.