docs: update README.md to avoid 404 issue (#28217)

README.md

@@ -174,7 +174,7 @@ Understanding the Superset Points of View
   - [Superset in 2 Minutes using Docker Compose](https://superset.apache.org/docs/installation/docker-compose#installing-superset-locally-using-docker-compose)
   - [Installing Database Drivers](https://superset.apache.org/docs/databases/docker-add-drivers/)
   - [Building New Database Connectors](https://preset.io/blog/building-database-connector/)
-  - [Create Your First Dashboard](https://superset.apache.org/docs/using-superset/first-dashboard)
+  - [Create Your First Dashboard](https://superset.apache.org/docs/using-superset/creating-your-first-dashboard/)
   - [Comprehensive Tutorial for Contributing Code to Apache Superset
   ](https://preset.io/blog/tutorial-contributing-code-to-apache-superset/)
 - [Resources to master Superset by Preset](https://preset.io/resources/)