Context: The current website and its menu prominently features Milestones
Suggestion: Remove milstones from the menu. Decide if we want to mark as non-maintained or want to continue working on. Either way, the URL would remain the same, so no links will break.
Reasoning: The milestones probably do not provide value for visitors. They are usefull internally to tell our organizations story. Thus, they might be useful to continue working on, although less prominently featured.