adding @ to the todo

Signed-off-by: Alfredo Gutierrez <[email protected]>

server/src/main/java/com/hedera/block/server/ack/AckHandlerImpl.java

@@ -109,7 +109,7 @@ public void blockVerificationFailed(long blockNumber) {
     private void attemptAcks() {
         // Temporarily if lastAcknowledgedBlockNumber is -1, we get the first block in the map
         if (lastAcknowledgedBlockNumber == -1) {
-            // todo(147): once we have a way to get the last acknowledged block from the store we should use that
+            // @todo(147): once we have a way to get the last acknowledged block from the store we should use that
             lastAcknowledgedBlockNumber = 0;
         }