fix typo "amd" -> "and" (#61)

Co-authored-by: Oleksii Trekhleb <[email protected]>

Author: r04922101

src/functions/test_function_keyword_arguments.py

@@ -102,7 +102,7 @@ def function_with_one_argument(number):
     # containing the positional arguments beyond the formal parameter list.
     # (*name must occur before **name.) For example, if we define a function like this:
     def test_function(first_param, *arguments, **keywords):
-        """This function accepts its arguments through "arguments" tuple amd keywords dictionary."""
+        """This function accepts its arguments through "arguments" tuple and keywords dictionary."""
         assert first_param == 'first param'
         assert arguments == ('second param', 'third param')
         assert keywords == {