[gtk] gsk: Add GskRoundedRect to the docs

[Matthias Clasen <matthiasc src gnome org>]

commit e0f9c98e44814c6fc37e77922f4d7545f259c84b
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Mar 28 18:06:00 2019 -0400

    gsk: Add GskRoundedRect to the docs

 docs/reference/gsk/gsk4-docs.xml | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/docs/reference/gsk/gsk4-docs.xml b/docs/reference/gsk/gsk4-docs.xml
index 8fcc239cfa..63fc1e69fd 100644
--- a/docs/reference/gsk/gsk4-docs.xml
+++ b/docs/reference/gsk/gsk4-docs.xml
@@ -18,6 +18,7 @@
     <title>API Reference</title>
     <xi:include href="xml/GskRenderer.xml" />
     <xi:include href="xml/GskRenderNode.xml" />
+    <xi:include href="xml/GskRoundedRect.xml" />
     <xi:include href="xml/GskTransform.xml" />
   </reference>