update links Brian Vermeer

Author: bmvermeer

java-champions.yml

@@ -3031,6 +3031,9 @@ members:
       twitter: https://twitter.com/BrianVerm
       mastodon: https://mastodon.social/@brianverm
       bluesky: https://bsky.app/profile/brianverm.bsky.social
+      linkedin: https://www.linkedin.com/in/brianvermeer/
+      website: https://brianvermeer.nl
+      sessionize: https://sessionize.com/brian-vermeer
     avatar: img/avatars/BrianVermeer.png
   - name: Jonathan Vila
     year: 2020