[site] "basic topics" re-organized

_SUMMARY.md

@@ -33,12 +33,12 @@
         * [Psi Elements](basic_topics/architectural_overview/psi_elements.html)
     * [Structure of Project](basic_topics/project_structure.html)
     * [Action System](basic_topics/action_system.html)
-    * [Persisting State of Components](persisting_state.html)
-    * [PSI Cookbook](psi_cookbook.html)
-    * [Virtual File System](virtual_file_system.html)
-    * [Indexing and PSI Stubs](indexing_and_psi_stubs.html)
-    * [Run Configurations](run_configurations.html)
-    * [Testing Plugins](testing_plugins.html)
+    * [Persisting State of Components](basic_topics/persisting_state_of_components.html)
+    * [PSI Cookbook](basic_topics/psi_cookbook.html)
+    * [Virtual File System](basic_topics/virtual_file_system.html)
+    * [Indexing and PSI Stubs](basic_topics/indexing_and_psi_stubs.html)
+    * [Run Configurations](basic_topics/run_configurations.html)
+    * [Testing Plugins](basic_topics/testing_plugins.html)
 * [Advanced Topics](advanced_topics.html)
     * [Custom Language Support](custom_language_support.html)
     * [XML DOM API](xml_dom_api.html)