Update link

Author: DanWahlin

README.md

@@ -21,7 +21,7 @@ This course is designed for:
 - **Terminal users** who prefer keyboard-driven workflows over IDE integrations
 - **Teams looking to standardize** AI-assisted code review and development practices
 
-<a href="https://aka.ms/githubcopilotdevdays">
+<a href="https://aka.ms/githubcopilotdevdays" target="_blank">
   <picture>
     <img src="./images/copilot-dev-days.png" alt="GitHub Copilot Dev Days - Find or host an event" width="100%" />
   </picture>