docs: update CI/CD section with another link

Author: dphang

README.md

@@ -546,7 +546,7 @@ See `examples/dynamodb-crud` for an example Todo application that interacts with
 #### [CI/CD] Multi-stage deployments / A new CloudFront distribution is created on every CI build. I wasn't expecting that
 
 1. You need to commit your application state in source control. That is the files under the `.serverless` directory. Although this is not recommended as it doesn't work well for multiple stages.
-2. Alternatively you could use S3 to store the `.serverless` files, see an example [here](https://gist.github.com/hadynz/b4e190e0ce10e5811cb462920a9c678f) or [here](https://gist.github.com/dphang/7395ee09f6182f6b34f224660bed8e8c) (uses multiple `serverless.yml` files)
+2. Alternatively you could use S3 to store the `.serverless` files, see an example [here](https://gist.github.com/hadynz/b4e190e0ce10e5811cb462920a9c678f), [here](https://gist.github.com/dphang/7395ee09f6182f6b34f224660bed8e8c) (uses multiple `serverless.yml` files), or [here](https://github.com/serverless-nextjs/serverless-next.js/issues/328#issuecomment-655466654) (GitHub Actions-based, uses multiple `serverless.yml` files).
 
 In the future, we will look to improve this by integrating it into the component itself. The serverless team is currently working on remote state storage so this won't be necessary in the future.