guide WIP [skip ci]

docs/guide/structure-filters.md

+Filters
+=======
+
+> Note: This section is under development.
+
 You may apply some action filters to controller actions to accomplish tasks such as determining
 who can access the current action, decorating the result of the action, etc.
 

framework/base/View.php

@@ -206,7 +206,7 @@ class View extends Component
      * Otherwise, it will simply include the view file as a normal PHP file, capture its output and
      * return it as a string.
      *
-     * @param string $viewFile the view file. This can be either a file path or a path alias.
+     * @param string $viewFile the view file. This can be either an absolute file path or an alias of it.
      * @param array $params the parameters (name-value pairs) that will be extracted and made available in the view file.
      * @param object $context the context that the view should use for rendering the view. If null,
      * existing [[context]] will be used.