Django-oscar-stripe-sca

Fix syntax in README.rst for PyPI release.

- Remove the unused STRIPE_CURRENCY setting.
- Added the capability to send multiple line items to Stripe using the STRIPE_COMPRESS_TO_ONE_LINE_ITEM setting.
- Added the capability to use the modern Stripe Prices API, which is now the default. Turn this off using the STRIPE_USE_PRICES_API setting (which default to True)
- Created a working sandbox.
- Fixed {% include %} link in stripe_preview.html

- Update Readme.
- Remove r' from strings.

- Dropped support for Python 2.
- Upgraded for django-oscar 3 and django-3.
- Added requirements.txt.

Initial release.