Update README and fix badges

README.md

@@ -1,8 +1,8 @@
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-[![GitHub Tests Action Status](https://img.shields.io/github/workflow/status/kmdwebdesigns/calendar/run-tests?label=tests)](https://github.com/kmdwebdesigns/calendar/actions?query=workflow%3ATests+branch%3Amaster)
-[![GitHub Code Style Action Status](https://img.shields.io/github/workflow/status/kmdwebdesigns/calendar/Check%20&%20fix%20styling?label=code%20style)](https://github.com/kmdwebdesigns/calendar/actions?query=workflow%3A"Check+%26+fix+styling"+branch%3Amaster)
+[![Tests](https://github.com/kmdwebdesigns/calendar/actions/workflows/run-tests.yml/badge.svg)](https://github.com/kmdwebdesigns/calendar/actions/workflows/run-tests.yml)
+[![Check & fix styling](https://github.com/kmdwebdesigns/calendar/actions/workflows/php-cs-fixer.yml/badge.svg)](https://github.com/kmdwebdesigns/calendar/actions/workflows/php-cs-fixer.yml)
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@@ -13,7 +13,7 @@ Calendar Library written in PHP
 
 ## Requirements
 
-Calendar requires PHP 7.2+ and [Carbon v2](https://github.com/briannesbitt/carbon).
+Calendar requires PHP 8.0+ and [Carbon v2](https://github.com/briannesbitt/carbon).
 
 ## Installation
 
@@ -31,10 +31,10 @@ Add the following above the `require` block in your `composer.json`:
 Then run the following in your terminal:
 
 ```bash
-composer require "carvefx/calendar:^3.0"
+composer require "carvefx/calendar:^4.0"
 ```
 
-Or, add `"carvefx/calendar": "^3.0"` to your `composer.json` and then run `composer update` in your terminal.
+Or, add `"carvefx/calendar": "^4.0"` to your `composer.json` and then run `composer update` in your terminal.
 
 ## Usage