docs: whitespace fix in readme

Author: jaredhendrickson13

README.md

@@ -8,7 +8,7 @@
 ![Docs](https://img.shields.io/website?url=https%3A%2F%2Fpfrest.org&label=Documentation)
 
 The pfSense REST API package is an unofficial, open-source REST and GraphQL API for pfSense CE and pfSense Plus
-firewalls.It is designed to be light-weight, fast, and easy to use. This guide will help you get started with the REST
+firewalls. It is designed to be light-weight, fast, and easy to use. This guide will help you get started with the REST
 API package and provide you with the information you need to configure and use the package effectively.
 
 ## Key Features