mkRedundantOption: try to remove random backslashes

flake.nix

@@ -55,7 +55,7 @@
 
     mkRedundantOption = name: value: attrs: lib.mkOption {
       inherit (attrs) type default;
-      description = "${attrs.description}\n\n<div class=admonition-warning><p class=admonition-title>::before\nRedundant</p><p>${mkRedundantOptionDescription name value}</p></div>";
+      description = "${attrs.description}\n\n\\<div class=admonition-warning>\\<p class=admonition-title>::before\nRedundant\\</p>\\<p>${mkRedundantOptionDescription name value}\\</p>\\</div>";
     };
   };
 }