add pip install example to README.md
add pip install example to README.md

I thought it’d be useful to explicitly point out the pypi name of the project (even if it’s just the title of the project). It would have saved me a minute of double checking. What do you think?
charettes/django-admin-enhancer,DjangoAdminHackers/django-admin-enhancer,charettes/django-admin-enhancer,DjangoAdminHackers/django-admin-enhancer,DjangoAdminHackers/django-admin-enhancer,charettes/django-admin-enhancer