Add example of access those secrets using pulumi

[ereli-sevenai]

File: content/docs/esc/reference.md

[interurban]

Hi @ereli-sevenai thanks for the feedback, Could you provide more context or specifics as to what you would be looking for and/or what would be helpful on this topic?

[toriancrane]

I am wondering if either the Store and Retrieve Secrets or the Integrate with Pulumi IaC ESC tutorial would be helpful here.