fix spellings

railties/lib/rails/generators/rails/app/app_generator.rb

@@ -21,7 +21,7 @@ def method_missing(meth, *args, &block)
   # generator.
   #
   # This allows you to override entire operations, like the creation of the
-  # Gemfile, README, or javascript files, without needing to know exactly
+  # Gemfile, README, or JavaScript files, without needing to know exactly
   # what those operations do so you can create another template action.
   class AppBuilder
     def rakefile

railties/lib/rails/generators/rails/app/templates/config/environments/production.rb.tt

@@ -31,7 +31,7 @@
   # Use a different cache store in production
   # config.cache_store = :mem_cache_store
 
-  # Enable serving of images, stylesheets, and javascripts from an asset server
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server
   # config.action_controller.asset_host = "http://assets.example.com"
 
   # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)