Generate a QR code Optional
If you'd like a QR, three reliable free generators:
qrcode.show · type your URL after the slash, like qrcode.show/yourname.github.io/psyc-301, and the QR appears instantly.
Chrome's built-in tool · right-click the address bar on your hub page and select "Create QR code".
qr-code-generator.com · paste your URL, download the PNG.
Drop the QR onto the first slide of every lecture, the syllabus, the back of a printed handout, your office door. The QR encodes the URL itself, so as long as the URL stays the same, the same QR keeps working forever. No expiration, no per-scan cost, no tracking.