Update README.md

Matheus2212 · web-flow · commit 3a80021490c9 · 2021-01-18T07:48:37.000-03:00
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 # PHP-Friendly-URLs
 Class that controls Friendly URL. It is focused on SEO best practices.
+
+---
+
+## Overview
+This class __construct method accepts a initial $url to work with. It can also be omitted, but then the script will try to use $_SERVER values to build the URL.
