Merge pull request #3223 from BradEstey/patch-1

Show Scroll Behavior upgrade example.

upgrade-guides/v2.0.0.md

@@ -82,6 +82,24 @@ const appHistory = useRouterHistory(createHashHistory)({ queryKey: false })
 <Router history={appHistory}/>
 ```
 
+### Using Scroll Behavior
+
+```js
+// v1.x
+import createBrowserHistory from 'history/lib/createBrowserHistory'
+import useScroll from 'scroll-behavior/lib/useStandardScroll'
+const history = useScroll(createBrowserHistory)()
+<Router history={history}/>
+
+// v2.0.0
+import { Router, useRouterHistory } from 'react-router'
+import createBrowserHistory from 'history/lib/createBrowserHistory';
+import useScroll from 'scroll-behavior/lib/useStandardScroll';
+
+const appHistory = useScroll(useRouterHistory(createBrowserHistory))();
+<Router history={appHistory}/>
+```
+
 ## Changes to `this.context`
 
 Only an object named `router` is added to context. Accessing `this.context.history`, `this.context.location`, and `this.context.route` are all deprecated. This new object contains the methods available from `history` (such as `push`, `replace`) along with `setRouteLeaveHook`.