Custom Query String Parsing docs in V2 upgrade guide

[npbee]

I may have run into a small documentation error regarding custom query string parsing in V2:

https://github.com/rackt/react-router/blob/master/upgrade-guides/v2.0.0.md#custom-query-string-parsing

I think instead of what's listed there for V2 we actually need to use a custom history like in https://github.com/rackt/react-router/blob/master/upgrade-guides/v2.0.0.md#using-custom-histories.

So, changing this:

// v1.x
<Router
  parseQueryString={parse}
  stringifyQueryString={stringify}
/>

// v2.0.0
import { useRouterHistory, browserHistory } from 'react-router'

const createAppHistory = useRouterHistory(browserHistory)

const appHistory = createAppHistory({
  parseQueryString: parse,
  stringifyQueryString: stringify
})

<Router history={appHistory}/>

to

// v1.x
<Router
  parseQueryString={parse}
  stringifyQueryString={stringify}
/>

// v2.0.0
import { useRouterHistory } from 'react-router'
import createBrowserHistory from 'history/lib/createBrowserHistory'

const createAppHistory = useRouterHistory(createBrowserHistory)

const appHistory = createAppHistory({
  parseQueryString: parse,
  stringifyQueryString: stringify
})

<Router history={appHistory}/>

I'm happy to make a PR with the changes, but I just wanted to make sure I'm not off base here.

Thanks for all of your work!

[taion]

You're exactly right. Nice catch.