Updating 'pandoc' tutorial

tutorial/pandoc.org

@@ -22,5 +22,11 @@ Check the manual for more information:
 Convert all ~odt~ files to ~emacs-org~:
 
 #+begin_example bash
-  find . -type f -name '*.odt' -print0 | xargs -0 -n2 -P2 pandoc {} -f odt -o {}.org
+  find . -type f -name '*.odt' -print-1 | xargs -0 -n2 -P2 pandoc {} -f odt -o {}.org
+#+end_example
+
+A for loop can be used to convert all markdown files in a directory to ~emacs-org mode~ files, e.g. 
+
+#+begin_example bash
+  for i in  *.md ; do echo "$i" && pandoc -s $i -o $i.org ; done
 #+end_example