pacakge->package, thanks Patrick!

Co-authored-by: Patrick Cloke <clokep@users.noreply.github.com>

mypy.ini

@@ -196,7 +196,7 @@ disallow_untyped_defs = True
 ;; Before ignoring a module, check to see if type stubs are available.
 ;; The `typeshed` project maintains stubs here:
 ;;     https://github.com/python/typeshed/tree/master/stubs
-;; and for each pacakge `foo` there's a corresponding `types-foo` package on PyPI,
+;; and for each package `foo` there's a corresponding `types-foo` package on PyPI,
 ;; which we can pull in as a dev dependency by adding to `setup.py`'s
 ;; `CONDITIONAL_REQUIREMENTS["mypy"]` list.