Added example

Added a desperately needed example of how to use the library!

Author: winternet-studio

README.md

@@ -12,3 +12,18 @@ This library can be used to:
 You can find a demo GUI [here](http://pxd.me/php-font-lib/www/font_explorer.html).
 
 This project was initiated by the need to read font files in the [DOMPDF project](https://github.com/dompdf/dompdf).
+
+Usage Example
+-------------
+
+```
+$font = \FontLib\Font::load('../../fontfile.ttf');
+$font->parse();  // for getFontWeight() to work this call must be done first!
+echo $font->getFontName() .'<br>';
+echo $font->getFontSubfamily() .'<br>';
+echo $font->getFontSubfamilyID() .'<br>';
+echo $font->getFontFullName() .'<br>';
+echo $font->getFontVersion() .'<br>';
+echo $font->getFontWeight() .'<br>';
+echo $font->getFontPostscriptName() .'<br>';
+```