Update README.md

Capital letters in const, remove default data in class Car

Author: GrzegorzZajac000

README.md

@@ -1148,9 +1148,9 @@ car.save();
 ```javascript
 class Car {
   constructor() {
-    this.make = 'Honda';
-    this.model = 'Accord';
-    this.color = 'white';
+    this.make = '';
+    this.model = '';
+    this.color = '';
   }
 
   setMake(make) {
@@ -1945,8 +1945,8 @@ class Alpaca {}
 const DAYS_IN_WEEK = 7;
 const DAYS_IN_MONTH = 30;
 
-const songs = ['Back In Black', 'Stairway to Heaven', 'Hey Jude'];
-const artists = ['ACDC', 'Led Zeppelin', 'The Beatles'];
+const SONGS = ['Back In Black', 'Stairway to Heaven', 'Hey Jude'];
+const ARTISTS = ['ACDC', 'Led Zeppelin', 'The Beatles'];
 
 function eraseDatabase() {}
 function restoreDatabase() {}