[retro-gtk/build-doc] ci: Move building the doc back after building the lib

[Adrien Plazas <aplazas src gnome org>]

commit c8f7926386fd5806057441993ba4f14dca529d48
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Sun Apr 12 10:30:03 2020 +0200

    ci: Move building the doc back after building the lib

 .gitlab-ci.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 0dbf5af..0d19875 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,7 +1,7 @@
 stages:
-  - doc
   - lint
   - build
+  - doc
   - test
   - review
   - publish