org.el (org-show-subtree): Make interactive.

* org.el (org-show-subtree): Make interactive.

TINYCHANGE

lisp/org.el

@@ -20986,6 +20986,7 @@ Stop at the first and last subheadings of a superior heading."
 
 (defun org-show-subtree ()
   "Show everything after this heading at deeper levels."
+  (interactive)
   (outline-flag-region
    (point)
    (save-excursion