Backup Squarespace code Injections to Github

This workflow backup Squarespace website header and footer injections into Github How It Works The Squarespace injections are fetched when an URL is placed Setup Instructions First, edit HTTP Request's URL to put your Squarespace site URL there Next, to configure the Github, update the Globals node with the following values: repo.owner – Your GitHub username repo.name – The name of your GitHub repository storing the workflows repo.path – The folder path within the repository where workflows are stored For example, if your GitHub username is john-doe, your repository is named n8n-backups, and injections are stored in a squarespace-backup/ folder, you would set: repo.owner → john-doe repo.name

Help me set up the n8n workflow "Backup Squarespace code Injections to Github" (https://n8n.io/workflows/3113). It uses: GitHub, HTTP Request, Code. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.