Add info about Logging Fraction

Author: cmoulliard

Diff for: README.md

@@ -32,6 +32,25 @@ public static void main(String[] args) throws Exception {
     container.deploy(deployment);
 ```
 
+To configure the logging appender responsible to collect the logs, we will add the Logging Fraction and define it as such
+
+```
+container.fraction(new LoggingFraction()
+		                       .fileHandler("swarm-camel", f -> {
+
+	                               Map<String, String> fileProps = new HashMap<>();
+	                               fileProps.put("path", LOG_FILE);
+	                               f.file(fileProps);
+	                               f.level(Level.INFO);
+	                               f.formatter("%d{HH:mm:ss,SSS} %-5p [%c] (%t) %s%e%n");
+                               })
+		                       .rootLogger(Level.INFO,"swarm-camel")
+        );
+```
+
+A FileHandler is defined with the name of the Logging file, the logging level and the format to be used to save the informations. To configure the Logging Api
+to use this appender for the root logger, we have also configured the rootLogger field with the id of the fileHandler created.
+
 ## Build
 
 You will need to compile this example first:
@@ -105,6 +124,9 @@ Then find the name of the pod that runs this quickstart, and output the logs fro
 
 You can also use the OpenShift web console to manage the running pods, and view logs and much more.
 
+As we have mounted a Kubernetes Volume between the host and the linux container, you can also consult the content of the WildFly Swarm log file `/var/log/swarm.log` if you ssh to the
+virtual machine. If you use minishift, simply run this command `minishift ssh` to access it.
+
 ## Access services using a web browser
 
 You can use any browser to perform a HTTP GET. This allows you to very easily test a few of the RESTful services we defined: