modify format

Author: czhangzhang

README.md

@@ -37,17 +37,20 @@ After the packaging is completed, you can find the cloudnative-1.0-SNAPSHOT.jar
 ### Deploy backend projects 
 1. Install a database such as ivorysql on your server and start it.
 2. create a directory to store the application files. For example:
-
+```
    mkdir -p /home/ivory
+```
 4. upload JAR file (cloudnative-1.0-SNAPSHOT.jar) to your server.
 5. create a directory(name must be: config) under /home/ivory to store the application files. For example:
-
+```
     mkdir -p /home/ivory/config
+```
 6. Please upload below files from the source code path ivory-cloud/cloudnative/src/main/resources to the /home/ivory/config path on your server.
+
    application.yaml
    application-native.yaml
    spring_pro_logback.xml
-7. then edit /home/ivory/config/application-native.yaml
+8. then edit /home/ivory/config/application-native.yaml
 Please modify url, username, password parts according to your actual situation.
 ```
 datasource: