docs: add Devtoberfest info (#5093)

Author: Lukas742

README.md

@@ -29,6 +29,13 @@
 
 `ui5-webcomponents-react` is providing a Fiori-compliant React implementation by leveraging the [UI5 Web Components](https://github.com/SAP/ui5-webcomponents).
 
+## Devtoberfest
+
+> [!Note]  
+> We are hosting a [session](https://groups.community.sap.com/t5/devtoberfest/build-your-own-react-application-with-ui5-web-components-for-react/ev-p/283244) on UI5 Web Components for React in SAP's Devtoberfest. If you are interested, feel free to attend!
+
+[![Thumbnail Devtoberfest session](https://i.ytimg.com/vi/zyOxgjoSnGw/hqdefault.jpg)](https://www.youtube.com/watch?v=zyOxgjoSnGw)
+
 ## Resources
 
 You can find our documentation under the following links: