Notify a team channel about new software releases via Slack and GitHub

This workflow automatically notifies the team in a Slack channel when code in a GitHub repository gets a new release. Prerequisites A GitHub account and credentials A Slack account and credentials Nodes GitHub Trigger node triggers the workflow when a release event takes place in the specified repository. Slack node posts a message in a specified channel with the text "New release is available in {repository name}", along with further details and a link to the release.

Help me set up the n8n workflow "Notify a team channel about new software releases via Slack and GitHub" (https://n8n.io/workflows/371). It uses: Slack. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.