update retirement notice

Author: soad003

README.md

@@ -4,7 +4,7 @@
 # GraphSense REST Interface
 
 > [!WARNING]
-> **Retirement notice:** This REST interface is retired and is **not** part of [graphsense-lib](https://github.com/graphsense/graphsense-lib).
+> **Retirement notice:** This REST interface is retired and is now part of the [graphsense-lib](https://github.com/graphsense/graphsense-lib) stack.
 
 The GraphSense REST Interface provides access to denormalized views computed
 by the [graphsense-transformation][graphsense-transformation] pipeline.