VRFS-1483 changed instructions to indicate default hiding of admin session

admin/app/admin/music_session_history.rb

@@ -25,7 +25,7 @@ ActiveAdmin.register JamRuby::MusicSessionHistory, :as => 'Music Session History
   index :as => :block do |msh|
     div :for => msh do
       h3 "Session ##{msh.music_session_id}: #{msh.created_at.strftime('%b %d %Y, %H:%M')}"
-      h4 "(append URL with ?admin=0 to hide admin sessions)"
+      h4 "(append URL with ?admin=1 to show admin sessions)"
       columns do
         column do
           panel 'Session Details' do