fix alignment

docs/modules/tutorials/pages/beginner/hello_node.adoc

@@ -238,13 +238,15 @@ a| Task…?
 a| Solution!
 
 a| Create a Spatial.
-a| Create a Mesh shape, wrap it into a Geometry, and give it a Material. For example:
+a| Create a Mesh shape, wrap it into a Geometry, and give it a Material. +
+For example:
 [source,java]
 ----
 // a cuboid default mesh
 Box mesh = new Box(Vector3f.ZERO, 1, 1, 1);
 Geometry thing = new Geometry("thing", mesh);
-Material mat = new Material(assetManager, "Common/MatDefs/Misc/ShowNormals.j3md");
+Material mat = new Material(assetManager,
+    "Common/MatDefs/Misc/ShowNormals.j3md");
 thing.setMaterial(mat);
 ----