message: docs: add note about documentation versions
diff: @@ -26,6 +26,8 @@ A zero configuration Nextjs 9.0 [serverless component](https://github.com/server
  - [Inputs](#inputs)
  - [FAQ](#faq)
  +> :warning: This README may reference new or changed functionality that is not yet published to npm. Please go to [Releases](https://github.com/serverless-nextjs/serverless-next.js/releases), find the correct `@sls-next/serverless-component` version you are using, and open the README for that release for more accurate information.
  +
  ### Motivation
  Since Nextjs 8.0, [serverless mode](https://nextjs.org/blog/next-8#serverless-nextjs) was introduced which provides a new low level API which projects like this can use to deploy onto different cloud providers. This project is a better version of the [serverless plugin](https://github.com/danielcondemarin/serverless-next.js/tree/master/packages/serverless-nextjs-plugin) which focuses on addressing core issues like [next 9 support](https://github.com/danielcondemarin/serverless-nextjs-plugin/issues/101), [better development experience](https://github.com/danielcondemarin/serverless-nextjs-plugin/issues/59), [the 200 CloudFormation resource limit](https://github.com/danielcondemarin/serverless-nextjs-plugin/issues/17) and [performance](https://github.com/danielcondemarin/serverless-nextjs-plugin/issues/13).
  