Add integration generator deprecation to changelog

Author: klyonrad

Changelog.md

@@ -6,6 +6,12 @@ Breaking Changes:
 * Change the order of `after_teardown` from `after` to `around` in system
   specs to improve compatibility with extensions and Capybara. (Tim Diggins, #2596)
 
+Deprecations:
+
+* Deprecates integration spec generator (`rspec:integration`)
+  which was an alias of request spec generator (`rspec:request`)
+  (Luka Lüdicke, #2374)
+
 ### 6.0.0.rc1
 
 Enhancements:

example_app_generator/generate_stuff.rb

@@ -89,7 +89,7 @@ def using_source_path(path)
 # request specs are now the default
 generate('rspec:controller wombats --no-request-specs --controller-specs --no-view-specs')
 
-generate('integration_test widgets')
+generate('integration_test widgets') # deprecated
 generate('mailer Notifications signup')
 
 generate('model thing name:string')