turbo_with_importmap.rb in turbo-rails-0.8.3

- old
+ new

@@ -1,5 +1,5 @@
 say "Import Turbo"
 append_to_file "app/javascript/application.js", %(import "@hotwired/turbo-rails"\n)
 
 say "Pin Turbo"
-append_to_file "config/importmap.rb", %(pin "@hotwired/turbo-rails", to: "turbo.js"\n)
+append_to_file "config/importmap.rb", %(pin "@hotwired/turbo-rails", to: "turbo.js", preload: true\n)