Fix Javadoc comment to point to the method correctly

Change-Id: I75d3dc9a0f4492ca9efe28e754898499038fa58d
diff --git a/src/main/java/net/onrc/onos/core/topology/Topology.java b/src/main/java/net/onrc/onos/core/topology/Topology.java
index 844507d..e672816 100644
--- a/src/main/java/net/onrc/onos/core/topology/Topology.java
+++ b/src/main/java/net/onrc/onos/core/topology/Topology.java
@@ -87,7 +87,7 @@
     /**
      * Acquire a read lock on the entire topology. The topology will not
      * change while readers have the lock. Must be released using
-     * {@link releaseReadLock()}. This method will block until a read lock is
+     * {@link #releaseReadLock()}. This method will block until a read lock is
      * available.
      */
     public void acquireReadLock();