fix(ci): Error: unexpected end of input

Refs #8

.gitlab-ci.yml

@@ -40,7 +40,7 @@ pages:
     - if: $CI_COMMIT_REF_NAME == $CI_DEFAULT_BRANCH
   script:
     - R -q -e 'remotes::update_packages("pkgdown")'
-    - R -q -e 'pkgdown::build_site(override = list(destination = "public")'
+    - R -q -e 'pkgdown::build_site(override = list(destination = "public"))'
   artifacts:
     paths:
       - public