Update options.py: typo scrict_equality and phrasing (#19806)

Fixes a typo `scrict_equality` which meant `strict_equality`. While in
there, I also changed a preposition to be more specific.

Author: wyattscarpenter

mypy/options.py

@@ -232,7 +232,7 @@ def __init__(self) -> None:
         # This makes 1 == '1', 1 in ['1'], and 1 is '1' errors.
         self.strict_equality = False
 
-        # Extend the logic of `scrict_equality` for comparisons with `None`.
+        # Extend the logic of `strict_equality` to comparisons with `None`.
         self.strict_equality_for_none = False
 
         # Disable treating bytearray and memoryview as subtypes of bytes