update docs

lisp/my/my-org-article.org

@@ -425,7 +425,7 @@ print(result)
 |---------+-------|
 
 ** Figures
-*** Include svg
+*** file svg
 #+NAME: fig-svg
 #+CAPTION: svg figure
 #+ATTR_ORG: :width 100
@@ -433,14 +433,14 @@ print(result)
 [[/usr/share/icons/hicolor/scalable/apps/emacs.svg]]
 
 See figure ref:fig-svg-import as a reference.
-*** Include png
+*** file png
 #+NAME: fig-png
 #+CAPTION: png figure
 #+ATTR_ORG: :width 100
 #+ATTR_LATEX: :width 1cm
 [[/usr/share/icons/hicolor/128x128/apps/emacs.png]]
 
-*** tikz using data file
+*** latex using tikz with data file
 #+HEADER: :file (tpl-file "test-tikz")
 #+HEADER: :results (tpl-results)
 #+BEGIN_src latex :exports results :wrap figure
@@ -558,6 +558,26 @@ print(fname, end='')
 #+RESULTS:
 [[file:img/figure-matplotlib-tex.svg]]
 
+*** dot graphviz
+
+#+begin_src dot :file img/figure-dot.png
+digraph G {
+  main -> parse -> execute;
+  main -> init;
+  main -> cleanup;
+  execute -> make_string;
+  execute -> printf;
+  init -> make_string;
+  main -> printf;
+  execute -> compare;
+}
+#+end_src
+
+#+ATTR_ORG: :width 500
+#+RESULTS:
+[[file:img/figure-dot.png]]
+
+
 ** Example / Verbatim
 #+BEGIN_EXAMPLE
   verbatime example