small typo in directories name in readme

Author: audrina-ebrahimi

README.md

@@ -179,7 +179,7 @@ Please go to the directory exercise\_3.
 
 To find **characters seven and eight**, you need to create a
 subdirectory named *solution* in `exercise_3/` and copy the files from
-the `code1/` and `code2/` folders into it.
+the `part1/` and `part2/` folders into it.
 
 For creating directories, use the command: