README.md in suspenders-1.28.0 vs README.md in suspenders-1.29.0

@@ -95,20 +95,22 @@
 * A [low database connection pool limit][pool]
 * [Safe binstubs][binstub]
 * [t() and l() in specs without prefixing with I18n][i18n]
 * An automatically-created `SECRET_KEY_BASE` environment variable in all
   environments
-* Configuration for [Travis Pro][travis] continuous integration
+* Configuration for [Travis][travis] Continuous Integration (tests)
+* Configuration for [Hound][hound] Continuous Integration (style)
 * The analytics adapter [Segment][segment] (and therefore config for Google
   Analytics, Intercom, Facebook Ads, Twitter Ads, etc.)
 
 [setup]: http://robots.thoughtbot.com/bin-setup
 [compress]: http://robots.thoughtbot.com/content-compression-with-rack-deflater/
 [pool]: https://devcenter.heroku.com/articles/concurrency-and-database-connections
 [binstub]: https://github.com/thoughtbot/suspenders/pull/282
 [i18n]: https://github.com/thoughtbot/suspenders/pull/304
 [travis]: http://docs.travis-ci.com/user/travis-pro/
+[hound]: https://houndci.com
 [segment]: https://segment.com
 
 ## Heroku
 
 You can optionally create Heroku staging and production apps:
@@ -154,9 +156,17 @@
     suspenders app --github organization/project
 
 This has the same effect as running:
 
     hub create organization/project
+
+## Spring
+
+Suspenders uses [spring](https://github.com/rails/spring) by default.
+It makes Rails applications load faster, but it might introduce confusing issues
+around stale code not being refreshed.
+If you think your application is running old code, run `spring stop`.
+And if you'd rather not use spring, add `DISABLE_SPRING=1` to your login file.
 
 ## Dependencies
 
 Suspenders requires the latest version of Ruby.