Drop GTK 3

Author: sophie-h

_data/crates.json

@@ -16,14 +16,9 @@
     "name": "pango",
     "repo": "gtk-rs-core"
   },
-  {
-    "section": "GTK 3",
-    "name": "gtk",
-    "repo": "gtk3-rs"
-  },
   {
     "section": "GTK 4",
     "name": "gtk4",
     "repo": "gtk4-rs"
   }
-]
+]

faq.md

@@ -22,7 +22,6 @@ Currently we only add crates to the gtk-rs project that are required for the exi
 You can find more examples in the corresponding repositories
 
 - [gtk-rs-core/examples](https://github.com/gtk-rs/gtk-rs-core/tree/master/examples)
-- [gtk3-rs/examples](https://github.com/gtk-rs/gtk3-rs/tree/master/examples)
 - [gtk4-rs/examples](https://github.com/gtk-rs/gtk4-rs/tree/master/examples)
 
 or have a look at the source code of the projects listed on our [start page](/#projects-using-gtk-rs).

index.md

@@ -5,7 +5,7 @@ layout: default
 
 # Unlocking the GNOME stack for Rust
 
-The **gtk-rs** project provides safe bindings to the [Rust] language for fundamental libraries from the [GNOME] stack like [GLib], [Cairo], [GTK 3][GTK] and [GTK 4][GTK].
+The **gtk-rs** project provides safe bindings to the [Rust] language for fundamental libraries from the [GNOME] stack like [GLib], [Cairo], and [GTK 4][GTK].
 {: class="center"}
 
 [GNOME]: https://www.gnome.org/technologies/