Fix README

README.md

@@ -42,7 +42,7 @@ dependency_manager.share(:connection) do |dependency_manager|
   MyConnection.new("mysql://root@localhost/my_db")
 end
 
-dependency_manager.share(UserRepository) do |dependency_manager|
+dependency_manager.share(:user_repository) do |dependency_manager|
   connection = dependency_manager.get(:connection)
   UserRepository.new(connection)
 end
@@ -65,11 +65,13 @@ class UsersController < SomeBaseController
   private
 
   def repository
-    dependency_manager.get(UserRepository)
+    dependency_manager.get(:user_repository)
   end
 end
 ```
 
+### Using factories
+
 ```ruby
 class DatabaseConnectionFactory < Nurse::SharedServiceFactory
   def create_service(dependencies)
@@ -95,8 +97,6 @@ dependency_manager.add_factory(DatabaseConnectionFactory.new)
 dependency_manager.add_factory(UserRepositoryFactory.new)
 ```
 
-### Using factories
-
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.