Small grammar fixes in readme.md (#180)

* Small grammar fixes

Consistent oxford commas, hyphen added to "full featured"

* REALLY added the hyphen

README.md

@@ -128,7 +128,7 @@ _For a complete listing of all available packages, see [Django Packages](https:/
 - [django-constance](https://github.com/jazzband/django-constance) - A Django app for storing dynamic settings in pluggable backends (Redis and Django model backend built in) with an integration with the Django admin app.
 - [djenv](https://github.com/danieljdufour/djenv) - Load Django settings from environmental variables.
 - [django-configurations](https://github.com/jazzband/django-configurations) - eases Django project configuration by relying on the composability of Python classes and following principles of [the twelve-factor app](https://12factor.net/config).
-- [dynaconf](https://www.dynaconf.com/django/) - Dynaconf loads django settings from multiple sources (multiple file formats, env vars, redis, vault, etcd), manages secrets and allows for different merging strategies all following [the twelve-factor app](https://12factor.net/config).
+- [dynaconf](https://www.dynaconf.com/django/) - Dynaconf loads django settings from multiple sources (multiple file formats, env vars, redis, vault, etcd), manages secrets, and allows for different merging strategies all following [the twelve-factor app](https://12factor.net/config).
 <!--lint enable double-link-->
 
 ### Content Management Systems
@@ -228,11 +228,11 @@ _For a complete listing of all available packages, see [Django Packages](https:/
 - [beatserver](https://github.com/rajasimon/beatserver) - A periodic task scheduler for Django.
 - [django-q](https://github.com/Koed00/django-q) - A multiprocessing distributed task queue.
 - [django-rq](https://github.com/rq/django-rq) - Integration for Redis Queue.
-- [django-redis](https://github.com/niwinz/django-redis) - Full featured Redis cache backend for Django.
+- [django-redis](https://github.com/niwinz/django-redis) - Full-featured Redis cache backend for Django.
 - [celery](https://github.com/celery/celery) - Robust and broker-agnostic task queues for bigger, performance-focused projects.
 - [django-celery-beat](https://github.com/celery/django-celery-beat) - A periodic task scheduler with database configured by Django's Admin Panel.
 - [celery-exporter](https://github.com/danihodovic/celery-exporter) - Prometheus & Grafana monitoring of Celery tasks.
-- [django-dramatiq](https://github.com/Bogdanp/django_dramatiq) - Task processing library with a focus on simplicity, reliability and performance.
+- [django-dramatiq](https://github.com/Bogdanp/django_dramatiq) - Task processing library with a focus on simplicity, reliability, and performance.
 
 ### Testing
 - [django-debug-toolbar](https://github.com/jazzband/django-debug-toolbar/) - Configurable panels to debug requests/responses.
@@ -415,7 +415,7 @@ _Django 3.0_
 - [PostHog](https://github.com/PostHog/posthog) - Open-source product analytics.
 - [HyperKitty](https://gitlab.com/mailman/hyperkitty) - A web interface to access GNU Mailman v3 archives.
 - [Healthchecks](https://github.com/healthchecks/healthchecks) - A Cron Monitoring Tool written in Python & Django.
-- [Flagsmith](https://github.com/Flagsmith/flagsmith) - Open-source Feature Flagging, Remote Config and AB testing.
+- [Flagsmith](https://github.com/Flagsmith/flagsmith) - Open-source Feature Flagging, Remote Config, and AB testing.
 
 ## Django REST Framework