To get started with Google Docs, first click to add a Google Docs account in your Zap.
Next, you'll name this Google Docs account. Note: This name is only for identifying the account inside Zapier, it will not automatically try to add a specific Google Docs account.
You should then get a pop-up window from Google Docs asking you to log-in to authorize the connection between that Google Docs account and Zapier.
If you are already logged in to your Google account on your browser, you will be asked to accept Zapier.
If you are looking to integrate with a Google Sheet, you will need to use the Google Sheets integration instead. You can check that out here.