from django.contrib import admin
from about.models import AboutSlideShowPhoto,JoiningTextField

admin.site.register(AboutSlideShowPhoto)
admin.site.register(JoiningTextField)

from django.contrib import admin
from about.models import AboutSlideShowPhoto,JoiningTextField

# Register the about models
admin.site.register(AboutSlideShowPhoto)
admin.site.register(JoiningTextField)

Update admin.py