correct comment

src/main/java/de/rieckpil/PostClient.java

@@ -7,6 +7,11 @@
 import org.springframework.stereotype.Component;
 import org.springframework.web.reactive.function.client.WebClient;
 
+/**
+ * Develop an HTTP client that fetch all posts from the post-service and return them as a list. The
+ * post-service returns the all posts with pagination. The client should fetch all pages and return
+ * the result as a list.
+ */
 @Component
 public class PostClient {