component: add price on top of BuildControls

src/components/Burger/BuildControls/BuildControls.js

@@ -12,6 +12,7 @@ const controls = [
 
 const buildControls = (props) => (
     <div className={classes.BuildControls}>
+        <p>Current Price: <strong>{props.price.toFixed(2)}</strong></p>
         {controls.map( ctrl => (
             <BuildControl 
             key={ctrl.name} 

src/containers/BurgerBuilder/BurgerBuilder.js

@@ -75,7 +75,8 @@ class BurgerBuilder extends Component {
                 <BuildControls 
                     ingredientAdded={this.addIngredientHandler} 
                     ingredientRemoved={this.removeIngredientHandler}
-                    disabled={disabledInfo} />
+                    disabled={disabledInfo}
+                    price={this.state.totalPrice} />
             </Aux>
         );
     };