GH-10: Showcase the usage of primary functions

Author: ArtyomVancyan

README.md

@@ -16,10 +16,12 @@ This library can be used to build a phone number input component with a country
 as to parse the phone metadata, validate phone numbers, format raw phone numbers into a more readable format and the
 opposite. You can use the [development](./development) to test and develop your own components.
 
-### useMask
-
 ```jsx
-import {useMask} from "react-phone-hooks";
+import {getFormattedNumber, getMetadata, parsePhoneNumber, useMask} from "react-phone-hooks";
+
+getMetadata("440201111111"); // ["gb", "United Kingdom", "44", "+44 (..) ... ....."]
+getFormattedNumber("440201111111", "+44 (..) ... ....."); // +44 (02) 011 11111
+parsePhoneNumber("+44 (02) 011 11111"); // {countryCode: 44, areaCode: "02", phoneNumber: "01111111", isoCode: "gb"}
 
 const PhoneInput = (props) => {
     return <input {...useMask("+1 (...) ... ....")} {...props}/>