adding demo for step 2-6

step2-06/exercise/src/index.tsx

@@ -0,0 +1,19 @@
+import { reducer } from './reducers';
+import { createStore, compose } from 'redux';
+import { actions } from './actions';
+
+/* Goop for making the Redux dev tool to work */
+declare var window: any;
+const composeEnhancers = window.__REDUX_DEVTOOLS_EXTENSION_COMPOSE__ || compose;
+function createStoreWithDevTool(reducer, initialStore) {
+  return createStore(reducer, initialStore, composeEnhancers());
+}
+
+const store = createStoreWithDevTool(reducer, {});
+
+console.log(store.getState());
+
+store.dispatch(actions.addTodo('hello'));
+store.dispatch(actions.addTodo('world'));
+
+console.log(store.getState());