Update runtime files.
diff --git a/runtime/doc/windows.txt b/runtime/doc/windows.txt
index 69de9ba..b3905be 100644
--- a/runtime/doc/windows.txt
+++ b/runtime/doc/windows.txt
@@ -1,4 +1,4 @@
-*windows.txt* For Vim version 8.2. Last change: 2021 Feb 06
+*windows.txt* For Vim version 8.2. Last change: 2021 Mar 21
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -790,7 +790,7 @@
Examples: >
- :windo set nolist nofoldcolumn | normal zn
+ :windo set nolist foldcolumn=0 | normal! zn
This resets the 'list' option and disables folding in all windows. >
@@ -798,7 +798,7 @@
This resets the 'fileencoding' in each buffer and writes it if this changed
the buffer. The result is that all buffers will use the 'encoding' encoding
-(if conversion works properly).
+(if conversion succeeds).
==============================================================================
9. Tag or file name under the cursor *window-tag*