The Quick Links plugin enhances Obsidian by allowing users to create shortcuts for easily linking to external websites and other resources. Users can define custom prefixes to create personalized link shortcuts, such as linking to Twitter profiles or specific Wikipedia pages. The plugin also supports linking to other Obsidian vaults using the `obsidian://` protocol. Additionally, users can configure whether these quick links should use the wiki link syntax or standard markdown links, offering flexibility in how links are displayed and integrated into the graph view. This makes it a powerful tool for streamlining navigation and linking workflows.