Tweak comments

Avoiding first and second person.

mypy.ini

@@ -1,22 +1,24 @@
 [mypy]
-# Set this to True if your project is well-typed
+# Is the project well-typed?
 strict = False
 
-# Settings that are enabled by default with `strict = True`, but we still want with `strict = False`
+# Early opt-in even when strict = False
 warn_unused_ignores = True
 warn_redundant_casts = True
 enable_error_code = ignore-without-code
 
-# required to support namespace packages: https://github.com/python/mypy/issues/14057
+# Support namespace packages per https://github.com/python/mypy/issues/14057
 explicit_package_bases = True
-# Too many false-positives
+
+# Disable overload-overlap due to many false-positives
 disable_error_code = overload-overlap
 
 exclude = (?x)(
-    # from skeleton
+    # upstream
 	^build/
 	| ^.tox/
- 	# end from skeleton
+
+ 	# local
 	)
 
 # - distutils._modified has different errors on Python 3.8 [import-untyped], on Python 3.9+ [import-not-found]