nixos/*: replace <code> in option docs with <literal>

markdown can't represent the difference without another extension and
both the html manual and the manpage render them the same, so keeping the
distinction is not very useful on its own. with the distinction removed
we can automatically convert many options that use <code> tags to markdown.

the manpage remains unchanged, html manual does not render
differently (but class names on code tags do change from "code" to "literal").

1 files changed, 2 insertions, 2 deletions

diff --git a/nixos/modules/services/networking/bird.nix b/nixos/modules/services/networking/bird.nix
index d409f060228..b166209fa96 100644
--- a/nixos/modules/services/networking/bird.nix
+++ b/nixos/modules/services/networking/bird.nix
@@ -24,7 +24,7 @@ in
         description = ''
           Whether the config should be checked at build time.
           When the config can't be checked during build time, for example when it includes
-          other files, either disable this option or use <code>preCheckConfig</code> to create
+          other files, either disable this option or use <literal>preCheckConfig</literal> to create
           the included files before checking.
         '';
       };
@@ -36,7 +36,7 @@ in
         '';
         description = ''
           Commands to execute before the config file check. The file to be checked will be
-          available as <code>bird2.conf</code> in the current directory.
+          available as <literal>bird2.conf</literal> in the current directory.
 
           Files created with this option will not be available at service runtime, only during
           build time checking.