[gimp-web-devel/hugo] content: update some page descriptions.

[Jehan <jehanp src gnome org>]

commit 297817c82e15469ab1b1ef15024e9ded0442d573
Author: Jehan <jehan girinstud io>
Date:   Sun Aug 7 16:01:59 2022 +0200

    content: update some page descriptions.
    
    * About page.
    * Core development landing page.
    * Resource development landing page.

 content/about.md                      | 18 ++++++++----------
 content/core_developers/_index.md     |  5 ++++-
 content/resource_developers/_index.md |  3 ++-
 3 files changed, 14 insertions(+), 12 deletions(-)
---
diff --git a/content/about.md b/content/about.md
index a6e724e..b4ce778 100644
--- a/content/about.md
+++ b/content/about.md
@@ -1,18 +1,16 @@
 +++
 title = "About this Site"
 description = "About this Site."
-date = "2022-07-19"
+date = "2022-08-07"
 author = "The GIMP Development Team"
 menu = "main"
 +++
 
-The look of this site was borrowed from
-[www.gimp.org](http://www.gimp.org/).
-Under the hood it is based on
-[DocBook Website](http://docbook.sourceforge.net/projects/website/).
-If you are curious, have a look at the [Markdown source](about.md)
-of the page you are reading.
-
-If you want to help us with developer.gimp.org, clone the
-repository `gimp-web-devel` from [git](git).
+This is the website for development of or with [GIMP](http://www.gimp.org/).
 
+Under the hood it uses the [Hugo framework](https://gohugo.io/) and
+`markdown` syntax.
+If you want to help us writing contents for `developer.gimp.org` or
+improving the website, clone the repository
+[`gimp-web-devel`](https://gitlab.gnome.org/Infrastructure/gimp-web-devel/)
+with `git`.
diff --git a/content/core_developers/_index.md b/content/core_developers/_index.md
index 75de8c4..7dfc6cc 100644
--- a/content/core_developers/_index.md
+++ b/content/core_developers/_index.md
@@ -6,4 +6,7 @@ menu: main
 weight: 1
 ---
 
-This is a holding page for the _section_ "Core Development".
+The _section_ "Core Development" contains information about GIMP
+internals. It is targetted at people wishing to contribute to core
+development, additionally to the [contents in "Resource
+Development](/resource_developers/).
diff --git a/content/resource_developers/_index.md b/content/resource_developers/_index.md
index 2208d3a..c7374c6 100644
--- a/content/resource_developers/_index.md
+++ b/content/resource_developers/_index.md
@@ -6,4 +6,5 @@ menu: main
 weight: 2
 ---
 
-This is a holding page for the _section _"Resource Development".
+The _section_ "Resource Development" contains information to create
+resources for GIMP or use GIMP as a development platform.