Add a mention of django-filesify for managing cert and key

[lazybird]

The django-filesidy third party package could be an alternative for managing cert/key on conainer hosted projects.

[peppelinux]

Can you please provide a link to the package's project page?

[lazybird]

Hello, thanks for looking at this !

Here is the package : https://github.com/lazybird/django-filesify/

I have used djangosaml2 in my project, and we've decided to publish this utility, django-filesify, in case other people need something like that. By the way, we are looking for comment and suggestion on that package, so please dont hesitate to have a look at it !

Thanks again for djangosmal2, it was perfect for out project !