add to play button python buffer execution

lisp/my/my-org-article.el

@@ -2402,7 +2402,7 @@ a:link::selection, a:link::-moz-selection {
   :package-version '(Org . "8.0")
   :type 'string)
 ;;;###autoload
-(put 'org-html-head 'safe-local-variable 'stringp)
+(put 'my-org-article-html-head 'safe-local-variable 'stringp)
 
 
 ;;; Export functions
@@ -2425,6 +2425,7 @@ a:link::selection, a:link::-moz-selection {
     (org-export-to-file 'article-html file async subtreep
                         visible-only body-only ext-plist)))
 
+;;;###autoload
 (defun my-org-article-help ()
   "Open the `my-org-article' manual."
   (interactive)