diff --git a/README.md b/README.md
index f47561c..53e4f08 100644
--- a/README.md
+++ b/README.md
@@ -36,9 +36,20 @@ const ExampleWithAsync = (props) => <Async promise={prom} then={(val) => {return
 
 Much simpler, especially if your component is read-only, like the example.
 
+## install
+
+With jspm:
+```
+jspm i npm:react-async
+```
+or with npm:
+```
+npm i react-async
+```
+
 ## [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/>`
+- **promise** a promise you want to wait for
+- **then**(optional) runs when promise is resolved. Async will run function provided in it's render passing a resolved value as first parameter.
+- **catch**(optional) 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/>`
diff --git a/async.js b/async.js
index 4035293..aebe785 100644
--- a/async.js
+++ b/async.js
@@ -49,7 +49,7 @@ Async.propTypes = {
   then: PropTypes.func,
   catch: PropTypes.func,
   pendingRender: PropTypes.node,
-  promise: PropTypes.object
+  promise: PropTypes.object.isRequired
 }
 
 export default Async
diff --git a/package.json b/package.json
index 29b8e34..c138cf0 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-async",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "react.js component",
   "main": "async.js",
   "scripts": {