Refine README

Author: sdeleuze

README.md

@@ -16,15 +16,15 @@ Please refer to [README](https://github.com/CRaC/docs#users-flow) for details.
 ### Preparing the image
 1. Run the [JDK](README.md#JDK) in the checkpoint mode
 ```
-$JAVA_HOME/bin/java -XX:CRaCCheckpointTo=cr -jar target/spring-boot-0.0.1-SNAPSHOT.jar
+$JAVA_HOME/bin/java -XX:CRaCCheckpointTo=cr -jar target/example-spring-boot-0.0.1-SNAPSHOT.jar
 ```
 2. Warm-up the instance
 ```
 siege -c 1 -r 100000 -b http://localhost:8080
 ```
 3. Request checkpoint
 ```
-jcmd target/spring-boot-0.0.1-SNAPSHOT.jar JDK.checkpoint
+jcmd target/example-spring-boot-0.0.1-SNAPSHOT.jar JDK.checkpoint
 ```
 
 ### Restoring

pom.xml

@@ -9,9 +9,9 @@
 		<relativePath/> <!-- lookup parent from repository -->
 	</parent>
 	<groupId>com.example</groupId>
-	<artifactId>spring-boot-initial</artifactId>
+	<artifactId>example-spring-boot</artifactId>
 	<version>0.0.1-SNAPSHOT</version>
-	<name>spring-boot-initial</name>
+	<name>example-spring-boot</name>
 	<description>Demo project for Spring Boot</description>
 	<properties>
 		<java.version>17</java.version>