Fixed javadocs.

Change-Id: I74064c7e6dce702c769272cfa5dba99a61ea5abc
diff --git a/core/api/src/main/java/org/onosproject/net/flow/package-info.java b/core/api/src/main/java/org/onosproject/net/flow/package-info.java
index e17da4d..73ee469 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/package-info.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/package-info.java
@@ -20,7 +20,7 @@
  * <p>
  * The figure below depicts the general interactions between different
  * components of the intent subsystem.<br>
- * <img src="doc-files/flowrule-design.png" alt="ONOS flow rule subsystem design">
+ * <img src="doc-files/flow-design.png" alt="ONOS flow rule subsystem design">
  * </p>
  */
 package org.onosproject.net.flow;