bpo-40640: doc -- add missing ... in example of Continue (GH-26055) (GH-26058)

Co-authored-by: Chas Belov <59780179+ChasBelov@users.noreply.github.com>
(cherry picked from commit 6574334)

Author: miss-islington

Doc/tutorial/controlflow.rst

@@ -208,6 +208,7 @@ iteration of the loop::
     ...         print("Found an even number", num)
     ...         continue
     ...     print("Found an odd number", num)
+    ...
     Found an even number 2
     Found an odd number 3
     Found an even number 4