Auto document your n8n workflows

Who is this for? This workflow is designed for n8n users and developers who need to automate the documentation process of their n8n workflows. It's particularly useful for teams looking to streamline their documentation efforts and ensure consistency across their workflow documentation. What problem is this workflow solving? / Use case The primary problem this workflow addresses is the manual and time-consuming process of creating documentation for n8n workflows. It automates the generation of concise, clear, and comprehensive documentation directly from the workflow's JSON, making it easier for both technical and non-technical users to understand what the workflow does and how it operates.

Help me set up the n8n workflow "Auto document your n8n workflows" (https://n8n.io/workflows/2173). It uses: OpenAI. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.