improve readme and add option to compress css

Readme.md

@@ -6,13 +6,13 @@ wp_enqueue_less provides a function to enqueue less stylesheets in WordPress.
 
 ### Composer
 
-Composer is the best way to install wp_enqueue_less so you get updates in the future easily.
+Composer is the best way to install wp_enqueue_less, so you get updates in the future easily.
 
 ```
 composer require ed-itsolutions/wp_enqueue_less
 ```
 
-and then in your `functions.php` of `plugin.php`
+and then in your `functions.php` or `plugin.php`
 
 ```php
 require_once('vendor/autoload.php');
@@ -29,7 +29,7 @@ In your normal `wp_enqueue_scripts` action simply call `wp_enqueue_less`
 `wp_enqueue_less` takes 3 arguments.
 
  - _key_ - The key name to use for this stylesheet.
- - _filePath_ - The on disk path to the .less file.
+ - _filePath_ - The on-disk path to the .less file.
  - _variables_ - A key->value array of variables to be passed to the less compiler.
 
 ```php
@@ -49,4 +49,12 @@ wp_enqueue_less will:
  - Compile this less file and write the output to `/wp-content/uploads/less/key-hash.css` (this can be changed with the filter `wp_enqueue_less_css_dir`).
  - Record the current hashes of all the less files used and the variables into the database.
  - On the next call if none of the hashes have changed it will skip parsing.
- - On a daily basis it will clean out its directory of everything but the current hash version of the stylesheet.
+ - On a daily basis it will clean out its directory of everything but the current hash version of the stylesheet.
+
+### Filters
+
+|Filter|Default|Purpose|
+|:-----|:------|:------|
+|wp_enqueue_less_css_url|`wp_upload_dir()['baseurl'] . '/less'`|The URL of the directory the compiled css is served from.|
+|wp_enqueue_less_css_dir|`wp_upload_dir()['basedir'] . '/less'`|The on-disk directory to serve compiled css from.|
+|wp_enqueue_less_compress|`true`|Should wp_enqueue_less compress the outputted css|

wp_enqueue_less.php

@@ -38,7 +38,9 @@ function wp_enqueue_less($key, $file, $variables){
 
 if(function_exists('add_action')){
   add_action('wp_enqueue_less_compile', function($details, $variables){
-    $parser = new Less_Parser();
+    $parser = new Less_Parser(array(
+      'compress' => apply_filters('wp_enqueue_less_compress', true)
+    ));
     $parser->parseFile($details->file, get_template_directory_uri());
     $parser->ModifyVars($variables);
     $css = $parser->getCss();