docs: Update GSK_RENDERER docs

This did not mention the opengl and ngl values yet.

diff --git a/docs/reference/gtk/running.md b/docs/reference/gtk/running.md
index 3a3458eb1d70b0a8ef03a3a30ea3ac4e0869e0a7..bd798341d21306c8929cc1b1ec4e0e3646b753de 100644 (file)
--- a/docs/reference/gtk/running.md
+++ b/docs/reference/gtk/running.md
@@ -324,9 +324,15 @@ using and the GDK backend supports them:
 `cairo`
 : Selects the fallback Cairo renderer
 
-`gl`
+`opengl`
 : Selects the default OpenGL renderer
 
+`gl`
+: Selects the "gl" OpenGL renderer
+
+`ngl`
+: Selects the "ngl" OpenGL renderer
+
 `vulkan`
 : Selects the Vulkan renderer