Update runtime files.
diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
index b202a93..d70b3e6 100644
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -1,4 +1,4 @@
-*insert.txt* For Vim version 8.2. Last change: 2020 Sep 19
+*insert.txt* For Vim version 8.2. Last change: 2020 Oct 16
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -312,6 +312,7 @@
the buffer to a file, the <NL> character is translated into <Nul>. The <NL>
character is written at the end of each line. Thus if you want to insert a
<NL> character in a file you will have to make a line break.
+Also see 'fileformat'.
*i_CTRL-X* *insert_expand*
CTRL-X enters a sub-mode where several commands can be used. Most of these