Parentheses fix.

wiki/src/news/test_2.0-rc1.mdwn

@@ -125,7 +125,7 @@ Known issues in 2.0~rc1
   icon, or the icon that allows to change to another keyboard layout,
   may be hidden. Other information, such as the clock, may not
   be visible. Restarting Tails often solves this problem.
-  ()[[!tails_ticket 10576]] and [[!tails_ticket 10807]])
+  ([[!tails_ticket 10576]] and [[!tails_ticket 10807]])
 
 * Network interfaces sometimes remain turned off ([[!tails_ticket 9012]]).
   If this happens to you, please [[report the error|doc/first_steps/bug_reporting]]