fix: Correct badge label formatting for Yii2 version in README.md. (#15)

Author: terabytesoftw

README.md

@@ -7,19 +7,19 @@
 
 <p align="center">
     <a href="https://www.php.net/releases/8.1/en.php" target="_blank">
-        <img src="https://img.shields.io/badge/PHP-%3E%3D8.1-787CB5" alt="php-version">
+        <img src="https://img.shields.io/badge/PHP-%3E%3D8.1-787CB5" alt="PHP-Version">
     </a>
     <a href="https://github.com/yiisoft/yii2/tree/2.0.52" target="_blank">
-        <img src="https://img.shields.io/badge/Yii2%20version-2.0.52-blue" alt="Yii2 version 2.0.52">
+        <img src="https://img.shields.io/badge/Yii2%20-2.0.52-blue" alt="Yii-22.0.52">
     </a>
     <a href="https://github.com/yiisoft/yii2/tree/22.0" target="_blank">
-        <img src="https://img.shields.io/badge/Yii2%20-22-blue" alt="Yii2 version 22">
+        <img src="https://img.shields.io/badge/Yii2%20-22-blue" alt="Yii2-22">
     </a>    
     <a href="https://github.com/yii2-extensions/phpstan/actions/workflows/build.yml" target="_blank">
         <img src="https://github.com/yii2-extensions/phpstan/actions/workflows/build.yml/badge.svg" alt="PHPUnit">
     </a>
     <a href="https://github.com/yii2-extensions/phpstan/actions/workflows/static.yml" target="_blank">        
-        <img src="https://github.com/yii2-extensions/phpstan/actions/workflows/static.yml/badge.svg" alt="Static Analysis">
+        <img src="https://github.com/yii2-extensions/phpstan/actions/workflows/static.yml/badge.svg" alt="Static-Analysis">
     </a>          
     <a href="https://codecov.io/gh/yii2-extensions/phpstan" target="_blank">
         <img src="https://codecov.io/gh/yii2-extensions/phpstan/branch/main/graph/badge.svg?token=MF0XUGVLYC" alt="Codecov">