fix vendor_slug and package_slug

Author: dietercoopman

README.md

@@ -1,9 +1,9 @@
 # :package_description
 
-[![Latest Version on Packagist](https://img.shields.io/packagist/v/vendor_slug/package_slug.svg?style=flat-square)](https://packagist.org/packages/vendor_slug/package_slug)
-[![GitHub Tests Action Status](https://img.shields.io/github/workflow/status/vendor_slug/package_slug/run-tests?label=tests)](https://github.com/vendor_slug/package_slug/actions?query=workflow%3ATests+branch%3Amaster)
-[![GitHub Code Style Action Status](https://img.shields.io/github/workflow/status/vendor_slug/package_slug/Check%20&%20fix%20styling?label=code%20style)](https://github.com/vendor_slug/package_slug/actions?query=workflow%3A"Check+%26+fix+styling"+branch%3Amaster)
-[![Total Downloads](https://img.shields.io/packagist/dt/vendor_slug/package_slug.svg?style=flat-square)](https://packagist.org/packages/vendor_slug/package_slug)
+[![Latest Version on Packagist](https://img.shields.io/packagist/v/:vendor_slug/:package_slug.svg?style=flat-square)](https://packagist.org/packages/:vendor_slug/:package_slug)
+[![GitHub Tests Action Status](https://img.shields.io/github/workflow/status/:vendor_slug/:package_slug/run-tests?label=tests)](https://github.com/:vendor_slug/:package_slug/actions?query=workflow%3ATests+branch%3Amaster)
+[![GitHub Code Style Action Status](https://img.shields.io/github/workflow/status/:vendor_slug/:package_slug/Check%20&%20fix%20styling?label=code%20style)](https://github.com/:vendor_slug/:package_slug/actions?query=workflow%3A"Check+%26+fix+styling"+branch%3Amaster)
+[![Total Downloads](https://img.shields.io/packagist/dt/:vendor_slug/:package_slug.svg?style=flat-square)](https://packagist.org/packages/:vendor_slug/:package_slug)
 
 ---
 This package can be used as to scaffold a framework agnostic package. Follow these steps to get started:
@@ -29,7 +29,7 @@ We highly appreciate you sending us a postcard from your hometown, mentioning wh
 You can install the package via composer:
 
 ```bash
-composer require vendor_slug/package_slug
+composer require :vendor_slug/:package_slug
 ```
 
 ## Usage

composer.json

@@ -1,11 +1,11 @@
 {
-    "name": "vendor_slug/package_slug",
+    "name": ":vendor_slug/:package_slug",
     "description": ":package_description",
     "keywords": [
         ":vendor_name",
-        "package_slug"
+        ":package_slug"
     ],
-    "homepage": "https://github.com/vendor_slug/package_slug",
+    "homepage": "https://github.com/:vendor_slug/:package_slug",
     "license": "MIT",
     "authors": [
         {