[gtk-web/issue-88: 2/5] Link to the correct GTK tutorial

[Emmanuele Bassi <ebassi src gnome org>]

commit 05f2e54baa77184a0ef61c53d4ad7e64cc1f1d57
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Sun Dec 5 13:41:38 2021 +0000

    Link to the correct GTK tutorial
    
    The "getting started" link should point to GTK4 and docs.gtk.org.

 _pages/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/_pages/index.html b/_pages/index.html
index ad1b74b..8d071ea 100644
--- a/_pages/index.html
+++ b/_pages/index.html
@@ -36,7 +36,7 @@ features_main_heading_description: GTK has all the features that a widget toolki
 development_section:
   - heading: Develop with GTK
     description: |-
-      By taking advantage of GTK being a cross-platform development tool and its easy to use API, you can 
develop amazing apps using the GTK. If you are interested in developing an app, get started now by developing 
this [example application](https://developer.gnome.org/gtk3/stable/ch01s04.html#id-1.2.3.12.5).
+      By taking advantage of GTK being a cross-platform development tool and its easy to use API, you can 
develop amazing apps using the GTK. If you are interested in developing an app, get started now by developing 
this [example application](https://docs.gtk.org/gtk4/getting_started.html).
     icon: fas fa-toolbox
   - heading: Develop GTK
     description: |-