minor changes in app templates guide

railties/guides/source/rails_application_templates.textile

@@ -148,7 +148,7 @@ The above creates +lib/tasks/bootstrap.rake+ with a +boot:strap+ rake task.
 
 h4. generate(what, args)
 
-Runs the supplied rails generator with given arguments. For example, I love to scaffold some whenever I’m playing with Rails:
+Runs the supplied rails generator with given arguments.
 
 <ruby>
 generate(:scaffold, "person", "name:string", "address:text", "age:number")
@@ -176,12 +176,6 @@ You can also run rake tasks with a different Rails environment:
 rake "db:migrate", :env => 'production'
 </ruby>
 
-Or even use sudo:
-
-<ruby>
-rake "gems:install", :sudo => true
-</ruby>
-
 h4. route(routing_code)
 
 This adds a routing entry to the +config/routes.rb+ file. In above steps, we generated a person scaffold and also removed +public/index.html+. Now to make +PeopleController#index+ as the default page for the application: