Merge pull request #9 from hsluoyz/master

Update badges.

Author: hsluoyz

README.md

@@ -2,11 +2,11 @@
 
 [![Build Status](https://www.travis-ci.org/pycasbin/django-orm-adapter.svg?branch=master)](https://www.travis-ci.org/pycasbin/django-orm-adapter)
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-[![PyPI - Wheel](https://img.shields.io/pypi/wheel/casbin_django_orm_adapter.svg)](https://pypi.org/project/casbin_django_orm_adapter/)
-[![Pyversions](https://img.shields.io/pypi/pyversions/casbin_django_orm_adapter.svg)](https://pypi.org/project/casbin_django_orm_adapter/)
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-[![License](https://img.shields.io/pypi/l/casbin_django_orm_adapter.svg)](https://pypi.org/project/casbin_django_orm_adapter/)
+[![Version](https://img.shields.io/pypi/v/casbin-django-orm-adapter.svg)](https://pypi.org/project/casbin-django-orm-adapter/)
+[![PyPI - Wheel](https://img.shields.io/pypi/wheel/casbin-django-orm-adapter.svg)](https://pypi.org/project/casbin-django-orm-adapter/)
+[![Pyversions](https://img.shields.io/pypi/pyversions/casbin-django-orm-adapter.svg)](https://pypi.org/project/casbin-django-orm-adapter/)
+[![Download](https://img.shields.io/pypi/dm/casbin-django-orm-adapter.svg)](https://pypi.org/project/casbin-django-orm-adapter/)
+[![License](https://img.shields.io/pypi/l/casbin-django-orm-adapter.svg)](https://pypi.org/project/casbin-django-orm-adapter/)
 
 Django ORM Adapter is the [Django](https://www.djangoproject.com/)'s [ORM](https://docs.djangoproject.com/en/3.0/ref/databases/) adapter for [PyCasbin](https://github.com/pycasbin/django-orm-adapter). With this library, Casbin can load policy from Django ORM supported database or save policy to it.
 
@@ -25,7 +25,7 @@ Based on [Officially Supported Databases](https://docs.djangoproject.com/en/3.0/
 ## Installation
 
 ```
-pip install casbin_django_orm_adapter
+pip install casbin-django-orm-adapter
 ```
 
 Add `casbin_adapter` to your `INSTALLED_APPS`