This tutorial introduces the concept of Continuous Integration and Continuous Delivery (CI/CD) for Twilio Functions using GitHub Actions, a workflow automation tool provided by GitHub. The author, Steve Tingiris, explains how to automate the deployment of Twilio Functions from within a GitHub repository, utilizing the Twilio CLI and Serverless Plugin. By setting up a GitHub Actions workflow, developers can trigger automated deployments whenever new code is pushed to their repository, ensuring faster time-to-market for their applications. The tutorial provides step-by-step instructions on how to set up CI/CD for Twilio Functions using GitHub Actions, including creating a GitHub repository, gathering required Twilio credentials, and reviewing the GitHub workflow.