Add space and \n to store results in file correctly

src/main/java/be/cylab/java/wowa/training/MainDL4J.java

@@ -84,10 +84,11 @@ public final class MainDL4J {
                     new FileOutputStream("Synthesis_average_AUC.txt", true),
                     StandardCharsets.UTF_8)) {
                 writer.write("Neuron number : " + neuron_number
-                        + "Learning rate : " + learning_rate
-                        + "Algorithm : " + args[3]
-                        + "Activation function : " + args[4]
-                        + "Average AUC = " + (average_auc / fold_number));
+                        + " Learning rate : " + learning_rate
+                        + " Algorithm : " + args[3]
+                        + " Activation function : " + args[4]
+                        + " Average AUC = "
+                        + (average_auc / fold_number) + "\n");
             } catch (IOException e) {
                 e.printStackTrace();
             }