Grammar fix for readme

Author: JoelEager

readme.md

@@ -2,7 +2,7 @@
 A course database lookup tool and schedule building web application for use at Rochester Institute of Technology.
 
 Instructions for setting up a dev environment:
->1. Install Apache (Use on XAMPP Windows: https://www.apachefriends.org/index.html)
+>1. Install Apache (Use XAMPP if you're on Windows: https://www.apachefriends.org/index.html)
 >2. Install Node.js: https://nodejs.org/en/
 >3. Clone either the master or a fork of this repo to your local machine
 >4. Copy the config.example.php file to config.php in /inc/