polished migration readme

Author: dieppa

README.md

@@ -19,7 +19,7 @@ We are the original authors of Mongock. Over the past couple of years, we've bee
 - Flexible/low‑code templates for defining changes
 - Native GraalVM support
 - Advanced multi-stage workflows
-- …and more in the docs → [Features overview](https://docs.flamingock.io/docs/1.0.0/overview/key-features)
+- …and more in the docs → [Features overview](https://docs.flamingock.io/docs/overview/key-features)
 
 > Same creators. Broader scope. Better foundations.