docs(readme): update badge links & installation instruction

Author: phatpham9

README.md

@@ -1,7 +1,7 @@
 <div align="center">
   <h1>create-package</h1>
   <p>Boring Node.js Package Generator</p>
-  
+
   <div>
     <a href="https://github.com/boringcodes/create-package/commits" aria-label="Commitizen Friendly">
       <img src="https://img.shields.io/badge/commitizen-friendly-brightgreen.svg?style=flat-square">
@@ -13,10 +13,10 @@
       <img src="https://img.shields.io/david/boringcodes/create-package?style=flat-square">
     </a>
     <a href="https://www.npmjs.com/package/@boringcodes/create-package" aria-label="NPM Version">
-      <img src="https://img.shields.io/npm/v/@boringcodes/create-package?color=brightgreen&style=flat-square">
+      <img src="https://img.shields.io/npm/v/generator-create-package?color=brightgreen&style=flat-square">
     </a>
     <a href="https://www.npmjs.com/package/@boringcodes/create-package" aria-label="NPM Downloads">
-      <img src="https://img.shields.io/npm/dm/@boringcodes/create-package?style=flat-square">
+      <img src="https://img.shields.io/npm/dm/generator-create-package?style=flat-square">
     </a>
     <a href="https://github.com/boringcodes/create-package/blob/master/LICENSE" aria-label="MIT License">
       <img src="https://img.shields.io/github/license/boringcodes/create-package?color=brightgreen&style=flat-square">
@@ -38,7 +38,7 @@ $ yarn global add yo
 Then install the generator
 
 ```sh
-$ yarn global add @boringcodes/create-package
+$ yarn global add generator-create-package
 ```
 
 ## Usage