Added examples and related methods to the .ref(refName) documentation…

… page

docs/api/ReactWrapper/ref.md

@@ -16,16 +16,30 @@ NOTE: can only be called on a wrapper instance that is also the root instance.
 
 
 
-#### Example
+#### Examples
 
+```jsx
+class Foo extends React.Component {
+  render() {
+    return (
+      <div>
+        <span ref="firstRef" amount={2}>First</span>
+        <span ref="secondRef" amount={4}>Second</span>
+        <span ref="thirdRef" amount={8}>Third</span>
+      </div>
+    );
+  }
+}
+```
 
 ```jsx
-const wrapper = mount(<MyComponent foo={10} />);
-expect(wrapper.prop('foo')).to.equal(10);
+const wrapper = mount(<Foo />);
+expect(wrapper.ref('secondRef').prop('amount')).to.equal(4);
+expect(wrapper.ref('secondRef').text()).to.equal('Second');
 ```
 
 
 #### Related Methods
 
-- [`.props() => Object`](props.md)
-- [`.state([key]) => Any`](state.md)
+- [`.find(selector) => ReactWrapper`](find.md)
+- [`.findWhere(predicate) => ReactWrapper`](findWhere.md)