Add an example with dependency logs

### Does this documenation exist?

* [X] This is new documentation
* [ ] This is an enhancement to existing documentation

### Where would you expect to find this documentation?

* [X] On terraform.io
* [ ] In the GoDoc for this module
* [X] In this repo as a markdown file
* [ ] Somewhere else

#### Details

Sometimes you have logs that are created in a dependency of the provider and not directly in the provider per see. How can we forward some SDK logs that contain valuable information to the tflog package?

### Description

### References

Start by reviewing the existing documentation on terraform.io and the repository's Markdown files for logging guidance. Identify where an example could explain forwarding dependency-created SDK logs to tflog, and consider the work complete when that use case is documented clearly for plugin developers.

Written by the indexing model from the issue text.