change cpu to energy in test file

README.md

@@ -63,7 +63,7 @@ TRON Protocol and the Tron Virtual Machine (TVM) allow anyone to develop decentr
 * JDK 1.8 (JDK 1.9+ are not supported yet)
 * On Linux Ubuntu system (e.g. Ubuntu 16.04.4 LTS), ensure that the machine has [__Oracle JDK 8__](https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-get-on-ubuntu-16-04), instead of having __Open JDK 8__ in the system. If you are building the source code by using __Open JDK 8__, you will get [__Build Failed__](https://github.com/tronprotocol/java-tron/issues/337) result.
 * Open **UDP** ports for connection to the network
-* **MINIMUM** 2 CPU Cores
+* **MINIMUM** 2 ENERGY Cores
 
 ## Build and Deploy automatically using scripts
 

src/main/java/org/tron/program/FullNode.java

@@ -29,9 +29,9 @@ public static void main(String[] args) throws InterruptedException {
     }
 
     if (Args.getInstance().isDebug()) {
-      logger.info("in debug mode, it won't check cpu time");
+      logger.info("in debug mode, it won't check energy time");
     } else {
-      logger.info("not in debug mode, it will check cpu time");
+      logger.info("not in debug mode, it will check energy time");
     }
 
     DefaultListableBeanFactory beanFactory = new DefaultListableBeanFactory();