Use standard heading for ast module docs

diff --git a/Doc/library/ast.rst b/Doc/library/ast.rst
index ef36f50235f6d31aee95a473474392bc3e89f076..d9b22127ca90aaf144ef613a797f62c9e3768312 100644 (file)
--- a/Doc/library/ast.rst
+++ b/Doc/library/ast.rst
@@ -1,7 +1,5 @@
-.. _ast:
-
-Abstract Syntax Trees
-=====================
+:mod:`ast` --- Abstract Syntax Trees
+====================================
 
 .. module:: ast
    :synopsis: Abstract Syntax Tree classes and manipulation.