Update README.

Author: weynhamz

README.md

@@ -1,20 +1,21 @@
 phpctags
 ========
 
-An enhanced php ctags file generator.
+An enhanced php [ctags](http://ctags.sourceforge.net/) index file generator
+compatible with http://ctags.sourceforge.net/FORMAT.
 
 Using [PHP_Parse](https://github.com/nikic/PHP-Parser) as PHP syntax parsing
 backend, written in pure PHP. The generated ctags index file contains scope
-and access information about the class methods and properties.
+and access information about class's methods and properties.
 
-This tool was originally developed to enhance the PHP surport for
-[tagbar](http://majutsushi.github.com/tagbar/) vim plugin. The enhaced
+This tool was originally developed to enhance the PHP syntax outline surport
+for vim [tagbar](http://majutsushi.github.com/tagbar/) plugin. The enhaced
 functionality has been included into an addon plugin for tagbar as
 [tagbar-phpctags](https://github.com/techlivezheng/tagbar-phpctags).
 
 Enjoy!
 
 Requirements
-============
+------------
 
 PHP CLI 5.3+