Update the example to use modern django

Example.md

@@ -1,9 +1,8 @@
 # Use of Example project
 
-1. create virtual env
-`virtualenv venv`
-1. activate env `source venv/bin/activate`
-1. install requirements `pip install -r requirements.txt`
+1. create virtual env: python -mvenv .venv
+1. activate env `source .venv/bin/activate`
+1. install requirements `python -mpip install -r requirements.txt`
 1. cd to example project `cd example`
 1. migrate `python manage.py migrate`
 1. create super user `python manage.py createsuperuser`
@@ -14,5 +13,6 @@
 For passkeys, you need to use HTTPS, after the above steps are done:
 
 1. stop the server
-1. install requirements `pip install -r example-ssl-requirements.txt`
+1. install requirements `python -mpip install -r example-ssl-requirements.txt`
 1. start the ssl server `python manage.py runsslserver`
+1. visit https://localhost:8000/ -- using `https://127.0.0.1:8000` will not work!

requirements.txt

@@ -1,8 +1,7 @@
-cffi==1.15.1
-cryptography==38.0.1
-Django==2.2.28
-django-sslserver==0.22
-fido2==1.1.1
-pycparser==2.21
-pytz==2022.5
-sqlparse==0.4.3
+cryptography>=45.0.5
+django>=5.2.4,<6.0
+django-sslserver>=0.22
+fido2>=2.0.0,<3.0.0
+pytz>=2025.2
+sqlparse>=0.5.3,<0.6.0
+-e .