When you click on the About page in Google Classroom, it initially appears very boring. But there's more to it than simply adding a description about your class. There's a link to your shared classroom folder, the Classroom Google Calendar and also a place for your to Add your own resources. The resources section is the portion that may be most underutilized but incredibly useful if organized thoughtfully. I like to use it to post links to the following:
class Quizlet site
shared folder for copies of class notes
class syllabus and templates for common assignment structure (ex. lab reports)
Watch the video to learn more about the "About" page in Classroom.