readme updated

README.md

@@ -35,3 +35,10 @@ const ExampleWithAsync = (props) => <Async promise={prom} then={(val) => {return
 ```
 
 Much simpler, especially if your component is read-only, like the example.
+
+## [Available props](https://github.com/capaj/react-async/blob/master/async.js#L48):
+
+- *promise* a promise you want to wait for
+- *then* runs when promise is resolved. Async will run function provided in it's render passing a resolved value as first parameter.
+- *catch* runs when promise is rejected. Async will run function provided in it's render passing an error as first parameter.
+- *pendingRender*(optional) is a node which will be outputted from Async render method while promise is pending. If none is provided, defaults to `<div/>`