Document the comparison operators recursive quick sort actually uses

The partition uses <= and >, so the Comparable protocol should declare __le__ and __gt__ as well as __lt__.

Author: HarshRajSinghania

sorts/recursive_quick_sort.py

@@ -14,6 +14,10 @@
 class Comparable(Protocol):
     def __lt__(self, other: Any, /) -> bool: ...
 
+    def __le__(self, other: Any, /) -> bool: ...
+
+    def __gt__(self, other: Any, /) -> bool: ...
+
 
 def quick_sort[T: Comparable](data: list[T]) -> list[T]:
     """Sort a list of mutually comparable items with recursive quick sort.