further fixes and updated last exercise

Author: meatball133

exercises/concept/train-driver/.docs/instructions.md

@@ -4,16 +4,15 @@ Your friend is a train driver and has to drive cargo trains between cities.
 Although your friend isn't amazing with handling the computers and would like some help with it.
 Your friend would like your help organizing the train and correcting mistakes in the data.
 
-
 ```exercism/note
 To practice, use the rest or spread operator to solve each of the tasks below.
 ```
 
 ## 1. Create a list of all wagons
 
-Your friend has been keeping track of eachs wagon identifer. Although they are not sure how many wagons and would like the data to be returned as an array.
+Your friend has been keeping track of each wagon identifier. Although they are not sure how many wagons and would like the data to be returned as an array.
 
-Implement a function `getListOfWagons` that accepts an unknown amount of possitve whole numbers that contains the id of each wagon.
+Implement a function `getListOfWagons` that accepts an unknown amount of positive whole numbers that contains the id of each wagon.
 It should return an array of all the wagon ids.
 
 ```javascript
@@ -24,9 +23,9 @@ getListOfWagons(1, 7, 12, 3, 14, 8, 5);
 ## 2. Move the first two elements to the end of the array
 
 Now that you got a general feel for handling your friend's data.
-The train id system works by the locomotive having id one and the rest of the wagons geting a random id.
-You friend had to connect two new wagons to the train and forgot to update the id system.
-Now the first two wagons in the array has to be moved to the back of the train.
+The train id system works by the locomotive having id number one and the rest of the wagons having a random id.
+Your friend had to connect two new wagons to the train and forgot to update the id system.
+Now the first two wagons in the array have to be moved to the back of the train.
 Your friend would like you to move the first two wagons to the end of the array.
 
 Implement a function `fixListOfWagons` that accepts an array of the id of each wagon.
@@ -44,7 +43,7 @@ Your friend realized that all data wasn't added and found another array which co
 Your friend would like you to add the missing values to the array. 
 All they can remember is that the missing values should be placed after the locomotive in the array.
 
-Given this new information, write a function called `CorrectListOfWagons` that takes two arrays which have the id of of each wagon as an argument. 
+Given this new information, write a function called `CorrectListOfWagons` that takes two arrays which have the id of each wagon as an argument. 
 The second array should be added after the first element of the first array.
 
 ```javascript
@@ -65,31 +64,31 @@ The first object contains which city the train should go between and the second
 The function should return an object with the updated routing information.
 
 ```exercism/note
-The variable `moreRouteInformation` can contain diffrent properties.
+The variable `moreRouteInformation` can contain different properties.
 ```
 
 ```javascript
 route  = {from: "Berlin", to: "Hamburg"};
-moreRouteInformation = {length: 100, speed: 50};
+moreRouteInformation = {length: "100", speed: "50"};
 extendRouteInformation(route, moreRouteInformation);
-// => {from: "Berlin", to: "Hamburg", length: 100, speed: 50}
+// => {from: "Berlin", to: "Hamburg", length: "100", speed: "50"}
 ```
 
-## 5. Remove arrival time from routing information
+## 5. Separate arrival time from routing information
 
 Your friend has noticed that they don't need the arrival time in the routing information.
-Therefore your friend would like you to remove the arrival time from the routing information.
+Therefore your friend would like you to separate the arrival time from the routing information.
 
-Implement a function `removeArrivalTime` that accepts an object with the routing information.
-The function should return an object
+Implement a function `separateArrivalTime` that accepts an object with the routing information.
+The function should return two objects.
 
 ```javascript
 routeInformation= {
   from: "Berlin",
   to: "Hamburg",
-  length: 100,
+  length: "100",
   timeOfArrival: "10:10"
 };
-removeTimeOfArrival(routeInformation);
-// => {from: "Berlin", to: "Hamburg", length: 100}
+separateTimeOfArrival(routeInformation);
+// => {timeOfArrival: "10:10"}, {from: "Berlin", to: "Hamburg", length: "100"}
 ```