Add /playground and initial tooltips

src/App.tsx

@@ -1,14 +1,18 @@
 import React from 'react'
 import './App.scss'
 import { IndexRoute } from './components/IndexRoute'
-import { BrowserRouter as Router, Route } from 'react-router-dom'
+import { PlaygroundRoute } from './components/PlaygroundRoute'
+import { BrowserRouter as Router, Route, Switch } from 'react-router-dom'
 
 const App: React.FC = () => {
   return (
     <Router basename={process.env.NODE_ENV === 'production' ? '/wow-talent-calculator' : ''}>
     {/* <Router basename={process.env.NODE_ENV !== 'development' ? '%PUBLIC_URL%' : ''}> */}
       <div className="App">
-        <Route path="/:selectedClass?/:pointString?" component={IndexRoute} />
+        <Switch>
+          <Route exact path="/playground" component={PlaygroundRoute} />
+          <Route path="/:selectedClass?/:pointString?" component={IndexRoute} />
+        </Switch>
       </div>
     </Router>
   );