Adjust logout link

Changed the logout link inside index.html

0.4.0

This is a snapshot on 2024-3-24.

• New feature: Supports Microsoft External ID with Custom Domain
• New feature: Supports Azure AD B2C
• Enhancement: The main source code in views.py is simplified.

Django Web App Sample 0.3.0

This was a snapshot of this sample on 2024-2-20 when it required explicit token acquisition call and its error handling.