Update 04-multiple-components.md

docs/04-multiple-components.md

@@ -171,7 +171,7 @@ var MyComponent = React.createClass({
 });
 ```
 
-You can also key children by passing an object. The object keys will be used as `key` for each value. However it is important to remember that JavaScript does not guarantee the ordering of properties will be preserved. In practice browsers will preserve property order **except** for properties that can be parsed as a 32-bit unsigned integers. Numeric properties will be ordered sequentially and before other properties. If this happens React will render components out of order. This can be avoided by adding a string prefix to the key:
+You can also key children by passing an object. The object keys will be used as `key` for each value. However it is important to remember that JavaScript does not guarantee the ordering of properties will be preserved. In practice browsers will preserve property order **except** for properties that can be parsed as 32-bit unsigned integers. Numeric properties will be ordered sequentially and before other properties. If this happens React will render components out of order. This can be avoided by adding a string prefix to the key:
 
 ```javascript
   render: function() {