[gtk-web] Update links in the architecture docs

[Emmanuele Bassi <ebassi src gnome org>]

commit 22de48dd84e0ff01919334cf017249119487483f
Author: Emmanuele Bassi <ebassi gmail com>
Date:   Thu Aug 19 17:23:02 2021 +0000

    Update links in the architecture docs
    
    The references moved from developer.gnome.org to docs.gtk.org.

 _docs/architecture/index.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/_docs/architecture/index.md b/_docs/architecture/index.md
index adc8265..3cc5658 100644
--- a/_docs/architecture/index.md
+++ b/_docs/architecture/index.md
@@ -10,14 +10,14 @@ developed by the GTK team.
 
 ## GLib
 
-[GLib](https://developer.gnome.org/glib/) is a low-level core library that
+[GLib](https://docs.gtk.org/glib/) is a low-level core library that
 forms the basis of GTK. It provides data structure handling for C,
 portability wrappers and interfaces for such run-time functionality as an
 event loop, threads, dynamic loading and an object system.
 
 ## Pango
 
-[Pango](https://www.pango.org/) is a library for layout and rendering of
+[Pango](https://docs.gtk.org/Pango/) is a library for layout and rendering of
 text with an emphasis on internationalization. It forms the core of text and
 font handling for GTK.
 
@@ -30,12 +30,12 @@ display hardware acceleration when available.
 
 ## GdkPixbuf
 
-[GdkPixbuf](https://developer.gnome.org/gdk-pixbuf) is a library for loading
+[GdkPixbuf](https://docs.gtk.org/gdk-pixbuf) is a library for loading
 graphical assets like icons in various formats, like PNG, JPEG, and GIF.
 
 ## ATK
 
-[ATK](https://developer.gnome.org/atk/) is a library for a set of interfaces
+[ATK](https://docs.gtk.org/atk/) is a library for a set of interfaces
 providing accessibility. By supporting the ATK interfaces, an application or
 toolkit can be used with tools such as screen readers, magnifiers, and
 alternative input devices.