Fix playground link

Author: jdevalk

README.md

@@ -10,7 +10,7 @@
 [![WordPress Plugin Rating](https://img.shields.io/wordpress/plugin/stars/progress-planner.svg)](https://wordpress.org/support/plugin/progress-planner/reviews/)
 [![GitHub](https://img.shields.io/github/license/ProgressPlanner/progress-planner.svg)](https://github.com/ProgressPlanner/progress-planner/blob/main/LICENSE)
 
-[![Try Progress Planner on the WordPress playground](https://img.shields.io/badge/Try%20Progress%20Planner%20on%20the%20WordPress%20Playground-%23117AC9.svg?style=for-the-badge&logo=WordPress&logoColor=ddd)](https://playground.wordpress.net/#{"landingPage":"/wp-admin/admin.php?page=progress-planner","features":{"networking":true},"login":true,"plugins":["https://github-proxy.com/proxy/?repo=ProgressPlanner/progress-planner"],"steps":[{"step":"defineWpConfigConsts","consts":{"IS_PLAYGROUND_PREVIEW":true}}]})
+[![Try Progress Planner on the WordPress playground](https://img.shields.io/badge/Try%20Progress%20Planner%20on%20the%20WordPress%20Playground-%23117AC9.svg?style=for-the-badge&logo=WordPress&logoColor=ddd)](https://playground.wordpress.net/?blueprint-url=https%3A%2F%2Fprogressplanner.com%2Fresearch%2Fblueprint-pp.php%3Frepo%3DProgressPlanner/progress-planner)
 
 # Progress Planner