[vte] docs: Install toml file to subdir

[Christian Persch <chpe src gnome org>]

commit 901558bf471299e483976770e062730f35c13414
Author: Jeremy Bicha <jeremy bicha canonical com>
Date:   Fri Jul 29 22:23:50 2022 +0200

    docs: Install toml file to subdir
    
    Fixes: https://gitlab.gnome.org/GNOME/vte/-/issues/2570

 doc/reference/meson.build | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/doc/reference/meson.build b/doc/reference/meson.build
index 3d98c7ae..beffb322 100644
--- a/doc/reference/meson.build
+++ b/doc/reference/meson.build
@@ -32,7 +32,7 @@ if get_option('gtk3')
     configuration: doc_conf,
     input: 'vte-gtk3.toml.in',
     install: true,
-    install_dir: docdir,
+    install_dir: docdir / vte_gtk3_api_name,
     output: vte_gtk3_api_name + '.toml',
   )
 
@@ -67,7 +67,7 @@ if get_option('gtk4')
     configuration: doc_conf,
     input: 'vte-gtk4.toml.in',
     install: true,
-    install_dir: docdir,
+    install_dir: docdir / vte_gtk4_api_name,
     output: vte_gtk4_api_name + '.toml',
   )