nixos/doc: Improve documentation of documentation

- Move contents of README.md from
  nixos/modules/installer/tools/manpages/ to
  nixos/doc/manual/contributing-to-this-manual.chapter.md.
- Don't mention DocBook as its obsolete and too specific.
- Rename derivation attribute name of configuration.nix(5) manual page,
  both on the `contributing-to-this-manual.chapter.md`, and in other
  places.

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/release.nix b/nixos/release.nix
index 2d7661e935f6..6da6faab73be 100644
--- a/nixos/release.nix
+++ b/nixos/release.nix
@@ -143,7 +143,7 @@ in rec {
   manualHTML = buildFromConfig ({ ... }: { }) (config: config.system.build.manual.manualHTML);
   manual = manualHTML; # TODO(@oxij): remove eventually
   manualEpub = (buildFromConfig ({ ... }: { }) (config: config.system.build.manual.manualEpub));
-  manpages = buildFromConfig ({ ... }: { }) (config: config.system.build.manual.configuration-manual);
+  nixos-configuration-reference-manpage = buildFromConfig ({ ... }: { }) (config: config.system.build.manual.nixos-configuration-reference-manpage);
   options = (buildFromConfig ({ ... }: { }) (config: config.system.build.manual.optionsJSON)).x86_64-linux;