Update README.md

Author: saikiransayabugari

sample-applications/chat-question-and-answer-core/README.md

@@ -23,6 +23,6 @@ Below, you'll find links to detailed documentation to help you get started, conf
   - [API Reference](docs/user-guide/api-reference.md): Comprehensive reference for the available REST API endpoints.
 
 - **Release Notes**
-  - [Release Notes](docs/user-guide/release-notes.md): Information on the latest updates, improvements, and bug fixes.
+  - [Release Notes](docs/user-guide/release-notes.md): Information on the latest updates, improvements, and bug fixes..