docs(readme): update badge links

Author: javier-godoy

README.md

@@ -1,5 +1,5 @@
-[![Published on Vaadin Directory](https://img.shields.io/badge/Vaadin%20Directory-published-00b4f0.svg)](https://vaadin.com/directory/component/chat-assistant)
-[![Stars on vaadin.com/directory](https://img.shields.io/vaadin-directory/star/app-layout-addon.svg)](https://vaadin.com/directory/component/chat-assistant)
+[![Published on Vaadin Directory](https://img.shields.io/badge/Vaadin%20Directory-published-00b4f0.svg)](https://vaadin.com/directory/component/chat-assistant-add-on)
+[![Stars on vaadin.com/directory](https://img.shields.io/vaadin-directory/star/chat-assistant-add-on.svg)](https://vaadin.com/directory/component/chat-assistant-add-on)
 [![Build Status](https://jenkins.flowingcode.com/job/ChatAssistant-addon/badge/icon)](https://jenkins.flowingcode.com/job/ChatAssistant-addon)
 [![Javadoc](https://img.shields.io/badge/javadoc-00b4f0)](https://javadoc.flowingcode.com/artifact/org.vaadin.addons.flowingcode/chat-assistant-addon)