Added manpages to the generated documentation

docs/default.nix

@@ -6,6 +6,8 @@
 }:
 
 let
+  man = pkgs.callPackage ./man { inherit self; };
+
   baseModule = _: {
     # Hide documentation relating to _module.args, which isn't a part
     # of this flake
@@ -35,6 +37,8 @@ let
       commonMark = docs.optionsCommonMark;
       json = docs.optionsJSON;
       nix = docs.optionsNix;
+
+      man = man.build "modules" subcomponent docs.optionsJSON;
     };
 in
 {