Update runtime files
diff --git a/runtime/doc/usr_toc.txt b/runtime/doc/usr_toc.txt
index d2173a0..268f7cf 100644
--- a/runtime/doc/usr_toc.txt
+++ b/runtime/doc/usr_toc.txt
@@ -1,4 +1,4 @@
-*usr_toc.txt*	For Vim version 8.2.  Last change: 2022 May 13
+*usr_toc.txt*	For Vim version 8.2.  Last change: 2022 Jun 03
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -341,21 +341,22 @@
 ==============================================================================
 Writing Vim script ~
 
-|usr_50.txt|  TODO
+|usr_50.txt|  Advanced Vim script writing
+		|50.1|	Line continuation
+		|50.2|	Restoring the view
 
 |usr_51.txt|  Write plugins
 		|51.1|	Writing a generic plugin
 		|51.2|	Writing a filetype plugin
 		|51.3|	Writing a compiler plugin
-		|51.4|	Writing a plugin that loads quickly
-		|51.5|	Writing library scripts
-		|51.6|	Distributing Vim scripts
+		|51.4|	Distributing Vim scripts
 
-|usr_52.txt|  Write plugins using Vim9 script
-		|52.1|	Introduction
-		|52.2|	Variable declarations
-		|52.3|	Functions and types
-		|52.4|	Using a Vim9 script from legacy script
+|usr_52.txt|  Write larger plugins
+		|52.1|	Export and import
+		|52.2|	Autoloading
+		|52.3|	Autoloading without import/export
+		|52.4|	Other mechanisms to use
+		|52.5|	Using a Vim9 script from legacy script
 
 ==============================================================================
 Making Vim Run ~