Final commit. Code improved

Task3 Merge several files into a single ordered file

Task3 Merge several files into a singe ordered file

Task2 Get dict get_shop_list_by_dishes with ingredients and their quantity

Task2 Get dict get_shop_list_by_dishes with ingredients and their quantity

Task1 Get dict cook_book from recipes.txt

Task1 Get dict cook_book from recipes.txt

Add work-with-files.py and recipes.txt

Add work-with-files.py and recipes.txt

Added test.py