Add missing description to calculate_mix

Author: codeofandrin

uncle_nelson/mix.py

@@ -44,9 +44,7 @@ class Mix(NamedTuple):
 
 
 def calculate_mix(drug: DrugType, ingredients: List[IngredientType]) -> Mix:
-    """
-
-
+    """Calculates a mix based on a :class:`.DrugType` and a list of :class:`.IngredientType`.
 
     Parameters
     -----------
@@ -69,8 +67,6 @@ def calculate_mix(drug: DrugType, ingredients: List[IngredientType]) -> Mix:
 
                 mix = calculate_mix(..., [IngredientType.banana, IngredientType.cuke])
 
-
-
     Returns
     -------
     :class:`.Mix`