use simple template

.gitlab-ci.yml

@@ -11,7 +11,7 @@ pages:
     - mv .public public
     - find public/ -name '.*' -exec rm -r {} \;
     - apt-get update -qq; apt-get install --reinstall -y libexpat1 #this is a workaround for some strange bug where libexpat is missing
-    - create-directory-html-index ./public ./public
+    - create-directory-html-index --template simple ./public ./public
   artifacts:
     paths:
       - public