Prettify a few things in README.md

Author: webyneter

README.md

@@ -19,14 +19,14 @@ Features
 -   Twitter [Bootstrap](https://github.com/twbs/bootstrap) v4
 -   [12-Factor](http://12factor.net/) based settings via
     [django-environ](https://github.com/joke2k/django-environ)
--   Secure by default. We believe in SSL.
+-   Secure by default. We believe in SSL/TLS.
 -   Optimized development and production settings
 -   Registration via
     [django-allauth](https://github.com/pennersr/django-allauth)
 -   Comes with custom user model ready to go
 -   Media storage using whitenoise
 -   Run tests with unittest or pytest
--   PostgreSQL SQLite3
+-   PostgreSQL / SQLite3
 -   Default integration with
     [pre-commit](https://github.com/pre-commit/pre-commit) for
     identifying simple issues before submission to code review