Update task.md

language checked

duckShopServer/duckShopServerAddElements/task.md

@@ -1,4 +1,4 @@
-In this task you need to implement functions to be able to
+In this task, you need to implement functions to be able to
 add ducks to the Duck Shop.
 
 ### Task
@@ -7,10 +7,10 @@ Implement three versions of the `addRandomDuck` function from the `GameChangeFun
 the `org.jetbrains.kotlin.course.duck.shop.functions.change` package.
 These functions should add a random duck from a list, set, or a map.
 
-Note, you need _actually_ to add a new duck, it means for the cases with a set and a map you 
+Note, you need to _actually_ add a new duck, which means that in the cases with a set and a map, you 
 need to generate a duck that is not present in the collection and add it.
 
-After implementing this task the `Add` button in all three modes becomes alive:
+After implementing this task, the `Add` button in all three modes becomes alive:
 
 ![Current state](../../utils/src/main/resources/images/duck/shop/states/state_5.gif)
 
@@ -22,7 +22,7 @@ If you have any difficulties, **hints will help you solve this task**.
 
 <div class="hint" title="How to add a new item into a list or set?">
 
-To add a new item you can use the `add` built-in function:
+To add a new item, you can use the built-in `add` function:
 ```kotlin
 val listOfNumbers = mutableListOf(1, 2, 3)
 listOfNumbers.add(4)
@@ -33,7 +33,7 @@ setOfNumbers.add(4)
 println(setOfNumbers) // 1, 2, 3, 4
 ```
 
-Note, that if you try to add the _same_ element to the set, it will not be added.
+Note that if you try to add the _same_ element to the set, it will not be added.
 </div>
 
 <div class="hint" title="How to add a new item into a map?">
@@ -45,9 +45,9 @@ myMap[3] = "three"
 println(myMap) // 1 to "one", 2 to "two", 3 to "three"
 ```
 
-In this case if you try to use an existing key, the old key will be replaced with the new one.
+In this case, if you try to use an existing key, the old key will be replaced with the new one.
 
-If you need to put something only if it is absent, you can use the `putIfAbsent` built-in function:
+If you need to put something only if it is absent, you can use the built-in `putIfAbsent` function:
 ```kotlin
 val myMap = mutableMapOf(1 to "one", 2 to "two")
 myMap.putIfAbsent(3, "three")
@@ -58,7 +58,7 @@ println(myMap) // 1 to "one", 2 to "two", 3 to "three"
 
 <div class="hint" title="How to find the difference between two lists?">
 
-You can use the `minus` built-in function, to make the call more efficient convert one of the argument to the set:
+You can use the built-in `minus` function to make the call more efficient and convert one of the arguments of the set:
 ```kotlin
 val listOfNumbers1 = listOf(1, 2, 3, 4, 5)
 val listOfNumbers2 = listOf(1, 2, 3)