Merge pull request numpy#20235 from Michael-T-McCann/example-typo

DOC: fix typo in example, put the return statement inside the with context

Author: charris

numpy/core/_add_newdocs.py

@@ -328,7 +328,7 @@
     ...     with it:
     ...         for (a, b, c) in it:
     ...             addop(a, b, out=c)
-    ...     return it.operands[2]
+    ...         return it.operands[2]
 
     Here is the same function, but following the C-style pattern: