Consider adding a short 2- to 3-minute video at the top of your start page with a personal introduction from you. See my post on creating a start page for more details on the start page.
Of course, you can create a written introduction to your course, but allowing learners to see and hear your face immediately creates a connection between you and them. It fosters a more personal relationship between teacher and learner that sets the tone for the rest of the term.
Treat this introduction as if you’re having a one-on-one conversation with one of your learners. Start with a warm welcome to the course. Include your position at your institution, as well as any relevant background information such as your research or professional interests. Provide a nutshell description of what students will experience in the course and your teaching philosophy.
In your introduction, be sure to point out any items on the start page that are especially important for students to know to be successful in the course. Include an invitation for students to connect with you and their fellow learners regularly during the course. Finish with some positive words that get learners excited to begin the term.
To create your introduction, you can use Canvas’ built-in video tool or create and edit your own video file. See my post on adding video for the strengths of both methods.