fix typo

addtion right brace

jctools-core/src/main/java/org/jctools/queues/MpscArrayQueue.java

@@ -213,7 +213,7 @@ public MpscArrayQueue(final int capacity)
     }
 
     /**
-     * {@link #offer}} if {@link #size()} is less than threshold.
+     * {@link #offer} if {@link #size()} is less than threshold.
      *
      * @param e         the object to offer onto the queue, not null
      * @param threshold the maximum allowable size