update a link

Author: mumian

articles/azure-resource-manager/templates/template-functions.md

@@ -164,7 +164,7 @@ Resource Manager provides several functions for working with objects.
 * [createObject](template-functions-object.md#createobject)
 * [empty](template-functions-object.md#empty)
 * [intersection](template-functions-object.md#intersection)
-* [items](tempalte-functions-object.md#items)
+* [items](template-functions-object.md#items)
 * [json](template-functions-object.md#json)
 * [length](template-functions-object.md#length)
 * [null](template-functions-object.md#null)