remove uncreated dir

.gitlab-ci.yml

@@ -10,7 +10,7 @@ pages:
   - Rscript -e "rmarkdown::render('presentation.Rmd', output_file = 'index.html')"
   - mkdir public
   - cp index.html xaringan-themer.css mycss.css public/
-  - cp -r index_files/ images/ public/
+  - cp -r images/ public/
   artifacts:
     paths:
     - public