from jango.db.models.fields import FieldDoesNotExist does not work with Django 3.0 instead import from django.core.exceptions

Django 3 doesn't support 'django.utils.six' instead direct import from six

There is a small typo in README.rst.

Should read `override` rather than `ovverride`.

docs: fix simple typo, ovverride -> override

mark_safe is added to create links between tables.

…ns and six (#3)

* Update FieldDoesNotExist in admin.py

FieldDoesNotExist is now located under django.core.exceptions.
Therefor the from import had to be updated.

* Update six in baker.py

six has changed in the meantime therefore the from import had to be updated.

Co-authored-by: Ramin-Shemirani <[email protected]>