Update Geneva.rb June event

Author: marcoroth

_data/meetups.yml

@@ -516,7 +516,7 @@
   end_time: 22:15:00 CEST
   url: https://www.meetup.com/paris_rb/events/300166992
 
-- name: Geneva.rb
+- name: Geneva.rb - Semantic search in RubyOnRails with GPT-4 (Yannis Jaquet, EPFL)
   location: Geneva, Switzerland
   date: 2024-06-05
   start_time: 19:00:00 CEST