Mark package as abandoned and update README with new package info.

The `composer.json` now indicates that `dropelikeit/laravel-responsefactory` is abandoned. The README advises users to transition to a new package that offers additional functions, and support will extend only until Laravel 11's end.

README.md

@@ -17,6 +17,9 @@ JMS-Serializer: https://github.com/schmittjoh/serializer
 
 You are also welcome to use the Issue Tracker to set bugs, improvements or upgrade requests.
 
+> Please use the new package https://github.com/Dropelikeit/laravel-responsefactory in the future. The new package contains some new and useful functions!
+This package will only be supported until the end of Laravel 11. Until then, you should use the new package.
+
 ### Installation
 
 ``` composer require dropelikeit/laravel-jms-serializer ```

composer.json

@@ -4,6 +4,7 @@
   "keywords": ["Lumen", "Laravel", "JMS Serializer", "JMS"],
   "minimum-stability": "stable",
   "license": "MIT",
+  "abandoned": "dropelikeit/laravel-responsefactory",
   "authors": [
     {
       "name": "Marcel Strahl",