How can I link an achievement in the chat?

If I achieve something or get some FoS to my friends in my battle.net chat or in my party chat, how can I do this? Is there a shortcut like Wow?

Yes, achievements are now linkable in chat.

From Patch 1.05:

Battle.net

• The "Friend of Friend" feature for finding and adding Real ID friends is now available for Diablo III
• A new item delivery system has been added that will allow Blizzard to send license-based items directly to players (for example, Collector's Edition rewards)
• Achievements
  • An Achievement button has been added to the in-game navigation tray
  • Players can now link Achievements in chat