mention threads

mcdonc · mcdonc · commit c35ac5f097d4 · 2012-01-19T00:11:12.000-05:00
diff --git a/docs/design.rst b/docs/design.rst
@@ -3,6 +3,7 @@ Design
 
 Waitress uses a combination of asynchronous and synchronous code to do its
 job.  It handles I/O to and from clients using the :term:`asyncore` library.
+It services requests via threads.
 
 The :term:`asyncore` module in the Python standard library:
 
