README.md in stud-0.0.12 vs README.md in stud-0.0.13

@@ -16,9 +16,10 @@
 
 * {Stud::Try} (and {Stud.try}) - retry on failure, with back-off, where failure is any exception.
 * {Stud::Pool} - generic resource pools
 * {Stud::Task} - tasks (threads that can return values, exceptions, etc)
 * {Stud.interval} - interval execution (do X every N seconds)
+* {Stud::Buffer} - batch & flush behavior.
 
 ## TODO:
 
 * Make sure all things are documented. rubydoc.info should be able to clearly
   show folks how to use features of this library.