formatting in in howto.adoc

git-svn-id: https://svn.apache.org/repos/asf/openwebbeans/meecrowave/trunk@1857747 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/meecrowave-doc/src/main/jbake/content/howto.adoc b/meecrowave-doc/src/main/jbake/content/howto.adoc
index 185fca9..11c9285 100755
--- a/meecrowave-doc/src/main/jbake/content/howto.adoc
+++ b/meecrowave-doc/src/main/jbake/content/howto.adoc
@@ -143,6 +143,7 @@
 If you need to configure the servlet, you should use a link:https://docs.oracle.com/javaee/6/api/javax/servlet/ServletContainerInitializer.html[ServletContainerInitializer].
 
 If you would have a declaration such as :
+
 [source,xml]
 ----
 <servlet>
@@ -284,6 +285,7 @@
 == How to add a web frontend ?
 
 You should add a <webapp> element to the meecrowave plugin configuration. Example :
+
 [source,xml]
 ----
 <plugin>