Add TODO memo + cosmetics

Change-Id: If0e82e42893a8cb5e04087622f727d1fd8df5210
diff --git a/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/OnosDistributedLinkStore.java b/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/OnosDistributedLinkStore.java
index 5df25b4..a59b151 100644
--- a/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/OnosDistributedLinkStore.java
+++ b/core/store/dist/src/main/java/org/onlab/onos/store/link/impl/OnosDistributedLinkStore.java
@@ -42,6 +42,7 @@
 import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.base.Preconditions.checkState;
 
+//TODO: Add support for multiple provider and annotations
 /**
  * Manages inventory of infrastructure links using a protocol that takes into consideration
  * the order in which events occur.