Thanks for using GitLab and for your feedback.<p>1. GitLab uses the awesome Rouge library to do syntax highlighting, this does support R <a href="https:&#x2F;&#x2F;github.com&#x2F;jneen&#x2F;rouge&#x2F;blob&#x2F;master&#x2F;lib&#x2F;rouge&#x2F;lexers&#x2F;r.rb" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jneen&#x2F;rouge&#x2F;blob&#x2F;master&#x2F;lib&#x2F;rouge&#x2F;lexers&#x2F;...</a> but apparently Rmarkdown is broken. I hope someone will contribute this to Rouge.<p>2. If you want to display the projects publically please make them public. If I misunderstood please let me know.<p>3. Please email support@gitlab.com about the broken group image and reference this comment. I&#x27;m sorry it is not working.<p>4. Relative links took a lot of work but I didn&#x27;t hear any complains in the last few months. If it is not user error please open an issue.<p>5. If you self-hosted installation thrashes consider switching to the Omnibus packages (if you haven&#x27;t done so already) and increasing memory. For memory requirements please see <a href="https:&#x2F;&#x2F;gitlab.com&#x2F;gitlab-org&#x2F;gitlab-ce&#x2F;blob&#x2F;master&#x2F;doc&#x2F;install&#x2F;requirements.md#memory" rel="nofollow">https:&#x2F;&#x2F;gitlab.com&#x2F;gitlab-org&#x2F;gitlab-ce&#x2F;blob&#x2F;master&#x2F;doc&#x2F;inst...</a><p>Thanks again for your comment.