doc: add function argument order convention (#110060)

* doc: add function argument order convention

Ordering by usage is the de facto ordering given to arguments. It's
logical, and makes finding argument usage easier. Putting lib first is
common in NixOS modules, so it's reasonable to mirror this in nixpkgs
proper. Additionally, it's not a package as such, has zero dependencies,
and can be found used anywhere in a derivation.

* doc: clean up usage of lib

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/languages-frameworks/ruby.section.md b/doc/languages-frameworks/ruby.section.md
index e292b3110ff4c..aeec154586c70 100644
--- a/doc/languages-frameworks/ruby.section.md
+++ b/doc/languages-frameworks/ruby.section.md
@@ -232,7 +232,7 @@ If you want to package a specific version, you can use the standard Gemfile synt
 Now you can also also make a `default.nix` that looks like this:
 
 ```nix
-{ lib, bundlerApp }:
+{ bundlerApp }:
 
 bundlerApp {
   pname = "mdl";