slides in rubytext-0.0.86

- old
+ new

@@ -32,6 +32,8 @@
 system("ruby showme.rb prog19.rb")
 system("ruby showme.rb prog20.rb")
 system("ruby showme.rb prog21.rb")
 system("ruby showme.rb prog22.rb 11")
 system("ruby showme.rb prog23.rb")
+system("ruby showme.rb prog24.rb")
+system("ruby showme.rb prog25.rb")
 