You can also try these related scripts:

• Markdown toolbar for gitlab.com - Markdown toolbar for gitlab.com issues
• GitLab Collapse Markdown - A userscript that collapses markdown headers
• GitLab Collapse In Comment - A userscript that adds a header that can toggle long code and quote blocks in comments
• Toggl-Button Gitlab - Toggle button for Gitlab
• GitLab Sort Content - A userscript that makes some lists & markdown tables sortable