Update runtime files
diff --git a/runtime/doc/spell.txt b/runtime/doc/spell.txt
index 48dbffc..1e33916 100644
--- a/runtime/doc/spell.txt
+++ b/runtime/doc/spell.txt
@@ -1,4 +1,4 @@
-*spell.txt*	For Vim version 8.2.  Last change: 2020 Jun 10
+*spell.txt*	For Vim version 8.2.  Last change: 2020 Jul 10
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -653,11 +653,12 @@
 'runtimepath' for this).
 
 The plugin has a default place where to look for spell files, on the Vim ftp
-server.  If you want to use another location or another protocol, set the
-g:spellfile_URL variable to the directory that holds the spell files.  The
-|netrw| plugin is used for getting the file, look there for the specific
-syntax of the URL.  Example: >
-	let g:spellfile_URL = 'http://ftp.vim.org/vim/runtime/spell'
+server.  The protocol used is SSL (https://) for security.  If you want to use
+another location or another protocol, set the g:spellfile_URL variable to the
+directory that holds the spell files.  You can use http:// or ftp://, but you
+are taking a security risk then.  The |netrw| plugin is used for getting the
+file, look there for the specific syntax of the URL.  Example: >
+	let g:spellfile_URL = 'https://ftp.nluug.nl/vim/runtime/spell'
 You may need to escape special characters.
 
 The plugin will only ask about downloading a language once.  If you want to