added some comments

src/main/java/de/anxietyprime/swajodel/Routes.java

@@ -11,10 +11,12 @@ public class Routes {
 
     @GetMapping("")
     public JodelPost test() {
+        // TODO: remove dec post
         JodelPost post = new JodelPost(100);
 
+        // calculate anonymous IDs for the post
         post.anonymize(Optional.empty());
-
+        // return the post
         return post;
     }