Expired sponsorships

README.md

@@ -387,12 +387,6 @@ api.mockResponseForOperation('getPetById'); // => { status: 200, mock: { id: 1,
 
 [See full Mock API example on Express](https://github.com/openapistack/openapi-backend/tree/main/examples/express-ts-mock)
 
-## Sponsors
-
-The openapi-backend project is supported by:
-
-<a href="https://www.devmark.ai/fern/?utm_source=openapistack-openapibackend&utm_loc=readme&utm_type=logo"><img alt="Fern" src="https://github.com/openapistack/docs/blob/main/static/img/sponsors/fern_logo_tagline.png?raw=true" height="80"></a>
-
 ## Commercial support
 
 For assistance with integrating openapi-backend in your company, reach out at [email protected].