Update README.md

Author: josemoracard

exercises/12.1-more_mapping/README.md

@@ -1,26 +1,24 @@
 # `12.1` More mapping
 
-The list `map()` method calls a function for each value in a list and then outputs a new list with the modified values.
+The `map()` method calls a function for each value in a list and then outputs a new list with the modified values.
 
 ```py
-#incrementByOne
-def values_list(number) {
- return number + 1
-}
+def increment_by_one(number):
+ return number + 1
 
 my_list = [1, 2, 3, 4]
-result = map(values_list, my_list) #returns [2, 3, 4, 5]
+result = map(increment_by_one, my_list) # returns [2, 3, 4, 5]
 ```
 
-## 📝Instructions:
+## 📝 Instructions:
 
-1. Create a function named `increment_by_one` that will multiply each number by 3.
+1. Create a function named `multiply_by_three` that will multiply each number by 3.
 
-2. Use the list `map()` function to run the `increment_by_one` function through each value in the list.
+2. Use the list `map()` function to run the `multiply_by_three` function through each value in the list.
 
 3. Store the new list in a variable named `new_list` and `print()` the new values.
 
-## 💡 Hint:
+## 💡 Hints:
 
 + The function will take a parameter with the original item being transformed and added into the new list.