Refactoring of example about immutable list.

Author: Alexis-Dia

src/by/bntu/fitr/povt/immutable/case5/Main.java

@@ -20,7 +20,7 @@
 public class Main {
 
     @Test
-    public void unmodifiableTest(){
+    public void unmodifiableListTest(){
         List<String> modifiable = new ArrayList<>();
         modifiable.add("1");
 
@@ -43,7 +43,7 @@ public void unmodifiableTest(){
     }
 
     @Test
-    public void immutableTest(){
+    public void immutableListTest(){
         List<String> modifiable = new ArrayList<>();
         modifiable.add("1");