Adding documentation

Author: floriankraemer

.github/workflows/ci.yaml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        php-version: ['8.1', '8.2', '8.3', '8.4']
+        php-version: ['8.1', '8.2', '8.3', '8.4', '8.5']
 
     steps:
       - uses: actions/checkout@v4