Fix error, add problems to readme

README.md

@@ -3,3 +3,16 @@
 An example GraphQL API implemented with Ariadne GraphQL Modules v2.
 
 This API aims to use ALL features from GraphQL Modules v2. It can also be used as a reference for other developers.
+
+
+# Problems found
+
+## `list[SchemaType]` type in `make_executable_schema`
+
+`list` is [invariant in mypy](https://mypy.readthedocs.io/en/stable/common_issues.html#variance). A list of `type[GraphQLObject]`, like one from the `example.queries.__init__` produces an error because `list[type[GraphQLObject]]` is incompatible with `list[type[GraphQLType]]`.
+
+
+## Resolvers need to be `@classmethod` or `@staticmethod` to keep linters happy.
+
+Linters will scream that resolver method decorated with `@ObectType.resolver` is missing `self` first attribute.
+

example/queries/__init__.py

@@ -1,6 +1,8 @@
+from typing import Any
+
 from . import groups, hello, users
 
-queries = [
+queries: Any = [
     groups.Query,
     hello.Query,
     users.Query,