add in org article help an result figure for the example table overlay using tikz

lisp/my/my-org-article.el

@@ -2324,7 +2324,7 @@ a:link::selection, a:link::-moz-selection {
                         visible-only body-only ext-plist)))
 
 (defun my-org-article-help ()
-  "Open the `org-ref' manual."
+  "Open the `my-org-article' manual."
   (interactive)
   (find-file (expand-file-name
               "my-org-article.org"

lisp/my/my-org-article.org

@@ -336,6 +336,8 @@ Set caption with \LaTeX{} command
 }%
 #+end_export
 
+[[file:./img/table-overlay-tikz.png]]
+
 *** From Python src block output
 #+begin_src python :results output table :exports results :hlines yes
 a = 1.362658