runtime(doc): quote partial urls with a backtick

closes: #18194

Signed-off-by: Yochem van Rosmalen <git@yochem.nl>
Signed-off-by: Christian Brabandt <cb@256bit.org>

Author: yochem

runtime/doc/spell.txt

@@ -665,11 +665,11 @@ ask you where to write the file (there must be a writable directory in
 'runtimepath' for this).
 
 The plugin has a default place where to look for spell files, on the Vim ftp
-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: >
+server.  The protocol used is TLS (`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.
 

runtime/doc/usr_23.txt

@@ -1,4 +1,4 @@
-*usr_23.txt*	For Vim version 9.1.  Last change: 2025 Jul 22
+*usr_23.txt*	For Vim version 9.1.  Last change: 2025 Sep 02
 
 		     VIM USER MANUAL - by Bram Moolenaar
 
@@ -138,18 +138,18 @@ might want to try the manual way of downloading the file.
 Accessing files over the internet works with the netrw plugin.  Currently URLs
 with these formats are recognized:
 
-	ftp://		uses ftp
-	rcp://		uses rcp
-	scp://		uses scp
-	http://		uses wget (reading only)
+	`ftp://`	uses ftp
+	`rcp://`	uses rcp
+	`scp://`	uses scp
+	`http://`	uses wget (reading only)
 
 Vim doesn't do the communication itself, it relies on the mentioned programs
 to be available on your computer.  On most Unix systems "ftp" and "rcp" will
 be present.  "scp" and "wget" might need to be installed.
 
 Vim detects these URLs for each command that starts editing a new file, also
 with ":edit" and ":split", for example.  Write commands also work, except for
-http://.
+`http://`.
 
 For more information, also about passwords, see |netrw|.