fix typo

.gitlab-ci.yml

@@ -4,7 +4,7 @@ pages:
   script:
     - Rscript requirements.R
     - quarto render ./
-    - mv _site/* public/   # gitlab pages should be stored in 'public' directory
+    - mv _site public    # gitlab pages should be stored in 'public' directory
   artifacts:
     paths:
       - public