Refine the documentation of the intermediate operations.

Author: ZahidFKhan

src/test/java/com/github/streams/learn/a_basics/intermediate_operations/E_Sorted.md

@@ -1,61 +1,19 @@
-# Data Set
-
-```java
-   List<Footballer> getFootballers() {
-    return List.of(
-            new Footballer("Messi", 32, Gender.MALE, List.of("CF", "CAM", "RF")),
-            new Footballer("Ibrahim", 28, Gender.MALE, List.of("CF", "CAM", "LF")),
-            new Footballer("Arthur", 23, Gender.MALE, List.of("CM", "CAM")),
-            new Footballer("Cristiano Ronaldo", 27, Gender.MALE, List.of("GK")),
-            new Footballer("Surinder", 20, Gender.MALE, List.of("CM", "CDM")),
-            new Footballer("Jennifer", 29, Gender.FEMALE, List.of("CF", "CAM")),
-            new Footballer("Jana", 17, Gender.FEMALE, List.of("CB")),
-            new Footballer("Alexia", 25, Gender.FEMALE, List.of("CAM", "RF", "LF"))
-    );
-}
-```
-
 # Sorted:
 
 The `sorted` method is used to sort the stream.
 
-#### Example: Sort footballers by Gender and if they have the same gender sort by their names.
 ```java
-        List<Footballer>  sortByGenderAndName= footballerList.stream()
-                .sorted(Comparator.comparing(Footballer::getGender).thenComparing(Footballer::getName))
-                .collect(Collectors.toList());
+List<Integer> result = List.of(5, 2, 4, 1, 3).stream()
+        .sorted()
+        .toList();
 
+System.out.println(result);
 ```
 
 #### Output:
 
 ```java
-sortByGenderAndName =[
-
-Footballer {
-    name = 'Arthur', age = 23, gender = MALE, positions =[CM, CAM]},
-
-Footballer {
-    name = 'Ibrahim', age = 28, gender = MALE, positions =[CF, CAM, LF]},
-
-Footballer {
-    name = 'Messi', age = 32, gender = MALE, positions =[CF, CAM, RF]},
-
-Footballer {
-    name = 'Surinder', age = 20, gender = MALE, positions =[CM, CDM]},
-
-Footballer {
-    name = 'Cristiano Ronaldo', age = 27, gender = MALE, positions =[GK]},
-
-Footballer {
-    name = 'Alexia', age = 25, gender = FEMALE, positions =[CAM, RF, LF]},
-
-Footballer {
-    name = 'Jana', age = 17, gender = FEMALE, positions =[CB]},
-
-Footballer {
-    name = 'Jennifer', age = 29, gender = FEMALE, positions =[CF, CAM]},
-        ]
+[1, 2, 3, 4, 5]
 ```
 
 

src/test/java/com/github/streams/learn/a_basics/intermediate_operations/L_MapMulti.md

@@ -1,6 +1,8 @@
 ## MapMulti:
 Instead of creating a new stream for each element, it directly sends the generated values to the next step in the stream. 
-This makes it simpler and sometimes more efficient when you want to expand or flatten data.
+This makes it simpler and sometimes more efficient when you want to expand or flatten data. 
+Often, you can achieve the same result using filter and map. But the problem with that is we have to use 2 different streams
+and do the operations twice. MultiMap allows us to do the both operation of filter and map in one stream thus makes it efficient.
 
 
 ### Example 1: