Issue 21575:  Show list.sort() arguments in the tutorial.
diff --git a/Doc/tutorial/datastructures.rst b/Doc/tutorial/datastructures.rst
index f2b66f7..5e95afa 100644
--- a/Doc/tutorial/datastructures.rst
+++ b/Doc/tutorial/datastructures.rst
@@ -73,10 +73,11 @@
    Return the number of times *x* appears in the list.
 
 
-.. method:: list.sort()
+.. method:: list.sort(key=None, reverse=False)
    :noindex:
 
-   Sort the items of the list in place.
+   Sort the items of the list in place (the arguments can be used for sort
+   customization, see :func:`sorted` for their explanation).
 
 
 .. method:: list.reverse()
diff --git a/Misc/ACKS b/Misc/ACKS
index f25da5e..7bf20c8 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -447,6 +447,7 @@
 Xavier de Gaye
 Harry Henry Gebel
 Marius Gedminas
+Jan-Philip Gehrcke
 Thomas Gellekum
 Gabriel Genellina
 Christos Georgiou