chore(docs): swap postalCode and phoneNumber order

Related to #52

Author: JeelRajodiya

content/02-Primitive-Types/02-Regular-Expressions-in-Strings/code.ts

@@ -7,8 +7,8 @@ const code: any = {
     age: {
       type: "integer",
     },
-    phoneNumber: {},
     postalCode: {},
+    phoneNumber: {},
     countryCode: {},
   },
 };