docs: Remove <ulink> elements

We use Markdown for documentation, not Docbook.

diff --git a/gdk/gdkpaintable.c b/gdk/gdkpaintable.c
index 5e3904e73c2073110aa4679f5b60ffeaa2a39dec..8e808b4913e03ad903295a26c94bb6f61d39a8be 100644 (file)
--- a/gdk/gdkpaintable.c
+++ b/gdk/gdkpaintable.c
@@ -38,10 +38,9 @@ void            gtk_snapshot_pop                        (GdkSnapshot
  * #GdkPaintable is a simple interface used by GDK and GDK to represent
  * objects that can be painted anywhere at any size without requiring any
  * sort of layout. The interface is inspired by similar concepts elsewhere,
- * such as #ClutterContent, <ulink
- * linkend="https://www.w3.org/TR/css-images-4/#paint-source">HTML/CSS Paint
- * Sources</ulink> or <ulink linkend="https://www.w3.org/TR/SVG2/pservers.html">
- * SVG Paint Servers</ulink>.
+ * such as [ClutterContent](https://developer.gnome.org/clutter/stable/ClutterContent.html),
+ * [HTML/CSS Paint Sources](https://www.w3.org/TR/css-images-4/#paint-source),
+ * or [SVG Paint Servers](https://www.w3.org/TR/SVG2/pservers.html).
  *
  * A #GdkPaintable can be snapshot at any time and size using
  * gdk_paintable_snapshot(). How the paintable interprets that size and if it