Feature/add docs (#689)

* Add converted docs repo

* Set theme jekyll-theme-minimal

* Removed BC docs, added TOC

* Added TOCs, rewrote most important links in documentation. Linked README to new Github Pages site

* some link fixes

docs/programmers/api-functions/api-clear-all-assign.md

@@ -0,0 +1,34 @@
+clearAllAssign()
+
+clears the values of all assigned variables
+
+Description
+===========
+
+void
+
+clearAllAssign
+
+
+    <?php
+    // passing name/value pairs
+    $smarty->assign('Name', 'Fred');
+    $smarty->assign('Address', $address);
+
+    // will output above
+    print_r( $smarty->getTemplateVars() );
+
+    // clear all assigned variables
+    $smarty->clearAllAssign();
+
+    // will output nothing
+    print_r( $smarty->getTemplateVars() );
+
+    ?>
+
+       
+
+See also [`clearAssign()`](#api.clear.assign),
+[`clearConfig()`](#api.clear.config),
+[`getTemplateVars()`](#api.get.template.vars), [`assign()`](#api.assign)
+and [`append()`](#api.append)