Some people for some reason really don't like the Canvas Files manager. So I'm just going to show that if you'd rather use Google Drive to Manage your files you can. I'd still recommend using Canvas Files to make things easier for your students. However, if you have a rare use case that requires sharing a google Drive folder you can do that as well.
1. Share your folder in Google (right click to get the menu)

2. Click "Get shareable link"

3. Adjust Sharing Settings and Copy Link

4. Make Link to it in Rich Text Editor
How do I create a hyperlink in the Rich Content Editor?

5. View Course Files in Google
