allow selecting conference option

db/migrate/20200817233053_add_conference_details_to_broadcasts.rb

@@ -0,0 +1,6 @@
+class AddConferenceDetailsToBroadcasts < ActiveRecord::Migration[6.0]
+  def change
+    add_column :broadcasts, :conference_option, :string
+    add_column :broadcasts, :conference_join_url, :string
+  end
+end

db/migrate/20200817233053_add_microsoft_teams_meeting_join_url_to_broadcasts.rb

@@ -1,5 +0,0 @@
-class AddMicrosoftTeamsMeetingJoinUrlToBroadcasts < ActiveRecord::Migration[6.0]
-  def change
-    add_column :broadcasts, :microsoft_teams_meeting_url, :string
-  end
-end