No worries! We misspell things too. If you notice a student's name is spelled incorrectly, simply go to your Classroom page and select the student. Once you do, you should see three vertical dots, or the menu icon. Click the menu and then select edit.
Click "Save" when you are done and that student is all set. If your students are managed via an SIS, click the blue chat icon on the bottom left to send us a message.