related to #1693 changed smarty version to 4.1.0

include/smarty/docs/programmers/api-functions/api-set-template-dir.md

@@ -0,0 +1,46 @@
+setTemplateDir()
+
+set the directories where templates are stored
+
+Description
+===========
+
+Smarty
+
+setTemplateDir
+
+string\|array
+
+template\_dir
+
+
+    <?php
+
+    // set a single directory where the templates are stored
+    $smarty->setTemplateDir('./cache');
+
+    // view the template dir chain
+    var_dump($smarty->getTemplateDir());
+
+    // set multiple directoríes where templates are stored
+    $smarty->setTemplateDir(array(
+        'one' => './templates',
+        'two' => './templates_2',
+        'three' => './templates_3',
+    ));
+
+    // view the template dir chain
+    var_dump($smarty->getTemplateDir());
+
+    // chaining of method calls
+    $smarty->setTemplateDir('./templates')
+           ->setCompileDir('./templates_c')
+           ->setCacheDir('./cache');
+
+    ?>
+
+       
+
+See also [`getTemplateDir()`](#api.get.template.dir),
+[`addTemplateDir()`](#api.add.template.dir) and
+[`$template_dir`](#variable.template.dir).