Rename perl module to raku.

It doesn't actually contain any Perl config.

modules/lang/perl/README.org

@@ -1,13 +0,0 @@
-#+TITLE: :lang perl
-
-This module adds support for Perl 6, and flycheck support for all versions of Perl.
-
-* Table of Contents :TOC:
-- [[#install][Install]]
-
-* Install
-This module depends on perl itself. Perl <5 typically comes bundled with most OSes and Linux distros.
-
-You'll have to install
-
-There are no other dependencies.

modules/lang/raku/README.org

@@ -0,0 +1,11 @@
+#+TITLE: :lang raku
+
+This module adds a major mode and flycheck for Raku.
+
+* Table of Contents :TOC:
+- [[#install][Install]]
+
+* Install
+This module depends on raku itself.
+
+There are no other dependencies.

modules/lang/raku/config.el

@@ -1,6 +1,5 @@
-;;; lang/perl/config.el -*- lexical-binding: t; -*-
+;;; lang/raku/config.el -*- lexical-binding: t; -*-
 
-;; There's also `perl-mode' for perl < 6, which is already set up.
 
 
 (use-package! raku-mode

modules/lang/raku/packages.el

@@ -1,5 +1,5 @@
 ;; -*- no-byte-compile: t; -*-
-;;; lang/perl/packages.el
+;;; lang/raku/packages.el
 
 (package! raku-mode :pin "d474216840251dc0efe4f4aa4f5c5f66ac26fa74")