[gnome-user-docs/yelp-check-ci] Enable some yelp-check tests during CI

[David King <davidk src gnome org>]

commit 7986f4016bb5010a71f7ee46d3ac8f415d18b597
Author: David King <amigadave amigadave com>
Date:   Sat Jul 20 21:43:29 2019 +0100

    Enable some yelp-check tests during CI

 .gitlab-ci.yml | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 53e3afdc..21968367 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -6,3 +6,7 @@ build-fedora:
     - ./autogen.sh
     - make
     - make check
+    - yelp-check ids gnome-help/C system-admin-guide/C
+    - yelp-check links gnome-help/C system-admin-guide/C
+    - yelp-check orphans gnome-help/C system-admin-guide/C
+    - yelp-check validate gnome-help/C system-admin-guide/C