Update README.md

Author: Slddev

README.md

@@ -1,9 +1,13 @@
 # PHP File Uploader
 
-Made by Slddev.
+## How to use
 
-# How to use
+1. Clone this repository with `git clone https://github.com/Slddev/php-fileuploader`.
+2. Upload files to webserver.
+3. Set database info in `config.php`
+4. Test it.
 
-1. Upload files to webserver.
-2. Make a directory `/img/`
-3. Configure `upload.php` to your likings.
+## Notes
+
+- Use PHP 7.4 for best compatibility.
+- To change size limits and other settings open `upload.php`, `iupload.php`, and `pupload.php`