Update README.md with sponsorship detail

Author: ferdikoomen

README.md

@@ -57,25 +57,21 @@ $ openapi --help
     $ openapi --input ./spec.json --output ./generated --client xhr
 ```
 
-## Docker usage
-
-To build the Docker container, execute the following command:
+Documentation
+===
 
-```
-docker build . --tag openapi-typescript-codegen
-```
+The main documentation can be found in the [openapi-typescript-codegen/wiki](https://github.com/ferdikoomen/openapi-typescript-codegen/wiki)
 
-After this is done, you can execute the CLI commands:
+Sponsors
+===
 
-```
-docker run openapi-typescript-codegen --help
-docker run openapi-typescript-codegen --input sample.yaml --output client
-```
+If you or your company use the OpenAPI Typescript Codegen, please consider supporting me. By sponsoring I can free up time to give this project some love! Details can be found here: https://github.com/sponsors/ferdikoomen
 
-Documentation
-===
+If you're from an enterprise looking for a fully managed SDK generation, please consider our sponsor:
 
-The main documentation can be found in the [openapi-typescript-codegen/wiki](https://github.com/ferdikoomen/openapi-typescript-codegen/wiki)
+<a href="https://speakeasyapi.dev/?utm_source=ferdi+repo&utm_medium=github+sponsorship">
+    <img alt="speakeasy" src="https://storage.googleapis.com/speakeasy-design-assets/ferdi-sponsorship.png" width="640"/>
+</a>
 
 [npm-url]: https://npmjs.org/package/openapi-typescript-codegen
 [npm-image]: https://img.shields.io/npm/v/openapi-typescript-codegen.svg