Add project title to welcome page

.gitlab-ci.yml

@@ -5,7 +5,7 @@ before_script:
   #- bundle install
 pages:
   script:
-    - antora antora-playbook.yml     
+    - antora --stacktrace generate antora-playbook.yml     
     - mkdir -p public
     - rsync -r build/site/ public
   artifacts:

trivial-doc/modules/ROOT/nav.adoc

-* xref:index.adoc[Welcome]
\ No newline at end of file
+* xref:index.adoc[]
\ No newline at end of file