content: import React, { Component } from 'react';
  import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
  
  import Tools from './smartcomponents/Tools';
  
  class App extends Component {
      render() {
          return (
              <Router>
                  <Switch>
                      <Route path='/tools/:tool?' component={Tools} />
                      <Route component={Tools} />
                  </Switch>
              </Router>
          );
      }
  }
  
  export default App;
  