Add a new lead to Pipedrive once GitHub repo is forked

This workflow automatically adds a new lead to Pipedrive once someone forks your GitHub repository. Prerequisites Pipedrive account and Pipedrive credentials GitHub account and GitHub credentials How it works GitHub Trigger node starts the workflow once someone forks your GitHub repository. HTTP Request node gets user's data from GitHub and sends it further. Pipedrive node searches forkee's data in Pipedrive by email. IF node decides whether to create a new person in Pipedrive in case contact doesn't exist yet or update an existing contact in Pipedrive. In case there's no contact existing yet, the Pipedrive node creates a lead and adds a note with GitHub URL.

Help me set up the n8n workflow "Add a new lead to Pipedrive once GitHub repo is forked" (https://n8n.io/workflows/1788). It uses: HTTP Request, Pipedrive. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.