improved docs

docs/manual/en-US/chapters/packages/media.md

@@ -6,17 +6,30 @@ The *Media* package is designed to compile and compress assets such as `Javascri
 
 ### Abstract Classes
 
+#### JMediaCompressor
+
+Abstract class `JMediaCompressor` contains functions to compress contents of a file by removing comment blocks, unnecessary white space  etc. It is extended by concrete classes such as `JMediaCompressorCss` and
+`JMediaCompressorJs` which contains implementation of compress function for a particular file type.
+
+##### *Example* : How to obtain a `JMediaCompressorJs` object for javascript files.
+
+```php
+	 // Options
+ 	$options = array('type' => 'css', 'REMOVE_COMMENTS' => true);
+
+	$collection = JMediaCollection::getInstance($options);
+```
+
 #### JMediaCollection
 
 Abstract class `JMediaCollection` contains functions to combine several files into a single file. It is extended by concrete classes such as `JMediaCollectionCss` and
-`JMediaCollectionJs` which contains implementations of combine functions for a particular file type.
+`JMediaCollectionJs` which contains implementation of combine function for a particular file type.
 
-Example : How to obtain a `JMediaCollectionCss` object for css files.
+##### *Example* : How to obtain a `JMediaCollectionCss` object for css files.
 
 ```php
 	 // Options
  	$options = array('type' => 'css', 'FILE_COMMENTS' => true);
 
 	$collection = JMediaCollection::getInstance($options);
 ```
-