Integration compatibility matrix level

Author: p1c2u

README.md

@@ -42,16 +42,16 @@ Check documentation to see more details about the features. All documentation is
 
 Supported [Integrations](https://openapi-core.readthedocs.io/en/latest/integrations/) and it's versions:
 
-| Integration | Version(s) |
-| --- | --- |
-| [AIOHTTP](https://openapi-core.readthedocs.io/en/latest/integrations/aiohttp/) | versions 3.8+ and 3.11+ tracks |
-| [Django](https://openapi-core.readthedocs.io/en/latest/integrations/django/) | versions 4, 5, and 6 |
-| [Falcon](https://openapi-core.readthedocs.io/en/latest/integrations/falcon/) | version 4 |
-| [FastAPI](https://openapi-core.readthedocs.io/en/latest/integrations/fastapi/) | versions 0.11x and 0.12x |
-| [Flask](https://openapi-core.readthedocs.io/en/latest/integrations/flask/) | versions 2 and 3 |
-| [Requests](https://openapi-core.readthedocs.io/en/latest/integrations/requests/) | default dependency set |
-| [Starlette](https://openapi-core.readthedocs.io/en/latest/integrations/starlette/) | versions 0.4x and 0.5x |
-| [Werkzeug](https://openapi-core.readthedocs.io/en/latest/integrations/werkzeug/) | default dependency set |
+| Integration | Version(s) | Level |
+| --- | --- | --- |
+| [AIOHTTP](https://openapi-core.readthedocs.io/en/latest/integrations/aiohttp/) | versions 3.8+ and 3.11+ tracks | Low-level request and response classes |
+| [Django](https://openapi-core.readthedocs.io/en/latest/integrations/django/) | versions 4, 5, and 6 | Middleware, decorator and low level |
+| [Falcon](https://openapi-core.readthedocs.io/en/latest/integrations/falcon/) | version 4 | Middleware and low-level classes |
+| [FastAPI](https://openapi-core.readthedocs.io/en/latest/integrations/fastapi/) | versions 0.11x and 0.12x | Middleware (low-level via Starlette integration) |
+| [Flask](https://openapi-core.readthedocs.io/en/latest/integrations/flask/) | versions 2 and 3 | View decorator, class-based view, and low-level classes |
+| [Requests](https://openapi-core.readthedocs.io/en/latest/integrations/requests/) | default dependency set | Low-level request, webhook request, and response classes |
+| [Starlette](https://openapi-core.readthedocs.io/en/latest/integrations/starlette/) | versions 0.4x and 0.5x | Middleware and low-level classes |
+| [Werkzeug](https://openapi-core.readthedocs.io/en/latest/integrations/werkzeug/) | default dependency set | Low-level request and response classes |
 
 ## Installation