docs: improve fluent interface

fluentinterface/src/main/java/com/iluwatar/fluentinterface/app/App.java

@@ -42,7 +42,7 @@ import lombok.extern.slf4j.Slf4j;
  * {@link SimpleFluentIterable} evaluates eagerly and would be too costly for real world
  * applications. The {@link LazyFluentIterable} is evaluated on termination. Their usage is
  * demonstrated with a simple number list that is filtered, transformed and collected. The result is
- * printed afterwards.
+ * printed afterward.
  */
 @Slf4j
 public class App {

fluentinterface/src/test/java/com/iluwatar/fluentinterface/fluentiterable/FluentIterableTest.java

@@ -191,7 +191,7 @@ public abstract class FluentIterableTest {
   }
 
   @Test
-  void testSpliterator() throws Exception {
+  void testSpliterator() {
     final var integers = List.of(1, 2, 3);
     final var split = createFluentIterable(integers).spliterator();
     assertNotNull(split);