Summary

In Configuring OpenApi servic guide, there is a step that says: Copy the OpenAPI specification files into your workflow service directory, such as src/main/resources/specs.
However, nowhere prior to this is explained that users should create such folder.
Furthermore, kn workflow plugin suggest users to create only /specs folder in the root directory of a workflow.
This is connfusing and the guide should be working in accordance to kn workflow plugin use case.

Environment

N/A

Steps to reproduce

1. Follow creating and managing wfs guide
2. Try to follow configuring OpenApi service to modify the workflow to use openApi calls in functions.

Actual results

Confusing reference of `src/main/resources/specs` that suggest Java and is not following what `kn workflow deploy --help` suggests.

Expected results

Reference of `<root_dir>/specs` as a target location for openApi specifications. Follow what `kn workflow deploy --help` suggests.

Testing

Validate the documentation and ensure there is clear way to do this use case.