Add more entries to the glossary.
Written by Jeff Wheeler for GHOP.
diff --git a/Doc/tutorial/stdlib2.rst b/Doc/tutorial/stdlib2.rst
index 9de2bc0..14c60dd 100644
--- a/Doc/tutorial/stdlib2.rst
+++ b/Doc/tutorial/stdlib2.rst
@@ -239,8 +239,8 @@
===============
Python does automatic memory management (reference counting for most objects and
-garbage collection to eliminate cycles). The memory is freed shortly after the
-last reference to it has been eliminated.
+:term:`garbage collection` to eliminate cycles). The memory is freed shortly
+after the last reference to it has been eliminated.
This approach works fine for most applications but occasionally there is a need
to track objects only as long as they are being used by something else.