runtime(doc): documentation updates

This is a collection of various improvements to the help pages

closes #12790

Co-authored-by: Houl <anwoku@yahoo.de>
Co-authored-by: Doug Kearns <dougkearns@gmail.com>
Co-authored-by: Adri Verhoef <a3@a3.xs4all.nl>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 6a20734..fe560d3 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -2160,11 +2160,11 @@
 	:let lpc_syntax_for_c = 1
 
 If it doesn't work properly for some particular C or LPC files, use a
-modeline.  For a LPC file:
+modeline.  For a LPC file: >
 
 	// vim:set ft=lpc:
 
-For a C file that is recognized as LPC:
+For a C file that is recognized as LPC: >
 
 	// vim:set ft=c:
 
@@ -2196,7 +2196,7 @@
 The Lua syntax file can be used for versions 4.0, 5.0, 5.1 and 5.2 (5.2 is
 the default). You can select one of these versions using the global variables
 lua_version and lua_subversion. For example, to activate Lua
-5.1 syntax highlighting, set the variables like this:
+5.1 syntax highlighting, set the variables like this: >
 
 	:let lua_version = 5
 	:let lua_subversion = 1