#6522: add a "decorator" directive to explicitly document decorators, and use it in a few places.
diff --git a/Doc/library/abc.rst b/Doc/library/abc.rst
index aa1cc78..5e87e96 100644
--- a/Doc/library/abc.rst
+++ b/Doc/library/abc.rst
@@ -122,7 +122,7 @@
 
 It also provides the following decorators:
 
-.. function:: abstractmethod(function)
+.. decorator:: abstractmethod(function)
 
    A decorator indicating abstract methods.