Update for June 28 webinar

Signed-off-by: Eric Poirier <eric.poirier@eclipse-foundation.org>
diff --git a/oxygen-content.json b/oxygen-content.json
index c533708..0dd34e1 100644
--- a/oxygen-content.json
+++ b/oxygen-content.json
@@ -134,8 +134,8 @@
       "text": "Generic Editor and LSP",
       "time": "11am EDT",
       "speaker": "Sopot Cela, Mickael Istria",
-      "button_title": "RSVP",
-      "button_link": "https://www.meetup.com/Virtual-Eclipse-Community-MeetUp/events/240640927/"
+      "button_title": "Watch Now",
+      "button_link": "https://www.youtube.com/watch?v=866-xH2Oi4c"
     },
     {
       "date": "June 29",