Add requirements to README
MODIFY
README.md
README.md
<p align="center">
<img src="/public/images/logo.png" width=160 />
</p>
-<p align="center">Budget is an open-source application that helps you keep track of your finances.</p>
+
+# Budget
+
+Budget is an open-source web application that helps you keep track of your finances.
+
+## Requirements
+
+- PHP 5.6+
+- MySQL

Add requirements to README