Full sample?

Do you happen to have a sample of a basic "Hello World" type serverless project with this in it? It's unclear where all the docs come from... I just made a project with `--template aws-nodejs-typescript` and added this to it, but can't get docs to generate:

```
[serverless-openapi-typescript] Scanning functions for documentation attribute
Environment: darwin, node 16.17.1, framework 3.30.0 (local), plugin 6.2.3, SDK 4.3.2
Docs: docs.serverless.com
Support: forum.serverless.com
Bugs: github.com/serverless/serverless/issues

Error:
Error: Some functions have http events which are not documented:
hello

Please add a documentation attribute.
If you wish to keep the function undocumented, please explicitly set
documentation: ~
```