[bug#39625] [PATCH] website: Update Guix manifest.

[sirgazil]

* website/README (Development environment): Use the manifest.
* website/guix.packages: Use specifications->manifest.
---
 website/README        | 12 ++++++++----
 website/guix.packages | 26 +++++++++++++-------------
 2 files changed, 21 insertions(+), 17 deletions(-)

diff --git a/website/README b/website/README
index d3a3a78..180eee9 100644
--- a/website/README
+++ b/website/README
@@ -9,14 +9,18 @@ files of the website.
 
 * Development environment
 
-This website is developed using the 
[[https://www.gnu.org/software/guix/download/][GNU Guix]] package manager. Run 
the
-following command to install all the software needed to build the
-website:
+Assuming you already have [[https://www.gnu.org/software/guix/download/][GNU 
Guix]] installed, you can use the manifest
+file provided with the source, ~guix.packages~, to create a separate
+Guix profile with all the software required to work on the website.
+For instance:
 
 #+BEGIN_EXAMPLE
-$ guix package -i git glibc-locales gnutls guile guile-json 
guile-syntax-highlight guix haunt
+$ guix package -m guix.packages -p path/to/development/profiledir/profile
 #+END_EXAMPLE
 
+See 
[[https://guix.gnu.org/cookbook/en/html_node/Guix-Profiles-in-Practice.html#Guix-Profiles-in-Practice][Guix
 Profiles in Practice]] for more information about creating and
+using profiles.
+
 * Running the website
 
 To try out the website locally while you work on it, run the following
diff --git a/website/guix.packages b/website/guix.packages
index 386307c..2f05e65 100644
--- a/website/guix.packages
+++ b/website/guix.packages
@@ -1,16 +1,16 @@
-;;; Packages required to develop the website.
-;;; (See guix package --manifest option for more details on this file).
+;;; This file is a GNU Guix manifest file. You can use it with the
+;;; "guix package" command to install all the packages necessary to
+;;; develop the website.
 
-(use-modules (guix profiles)
-            (gnu packages))
+(use-modules (gnu packages))
 
 
-(define dev-packages
-  (list "glibc-locales"
-       "guile@2.2"
-       "guile-syntax-highlight"
-       "guix"
-       "haunt"))
-
-
-(map specification->package dev-packages)
+(specifications->manifest
+ (list "git"
+       "glibc-locales"
+       "gnutls"
+       "guile"
+       "guile-json"
+       "guile-syntax-highlight"
+       "guix"
+       "haunt"))
-- 
2.25.0