added readme.md

Author: dg

readme.md

@@ -0,0 +1,53 @@
+RobotLoader: comfortable autoloading
+====================================
+
+[![Downloads this Month](https://img.shields.io/packagist/dm/nette/robot-loader.svg)](https://packagist.org/packages/nette/robot-loader)
+[![Build Status](https://travis-ci.org/nette/robot-loader.svg?branch=master)](https://travis-ci.org/nette/robot-loader)
+
+RobotLoader is a tool that gives you comfort of automated class loading for your entire application including third-party libraries.
+
+- get rid of all `require`
+- only necessary scripts are loaded
+- requires no strict file naming conventions
+- allows more classes in single file
+
+So we can forget about those famous code blocks:
+
+```php
+require_once 'Zend/Pdf/Page.php';
+require_once 'Zend/Pdf/Style.php';
+require_once 'Zend/Pdf/Color/GrayScale.php';
+require_once 'Zend/Pdf/Color/Cmyk.php';
+...
+```
+
+
+Like the Google robot crawls and indexes websites, RobotLoader crawls all PHP scripts and records what classes and interfaces were found in them.
+These records are then saved in cache and used during all subsequent requests. You just need to specifiy what directories to index and where to save the cache:
+
+```php
+$loader = new Nette\Loaders\RobotLoader;
+// Add directories for RobotLoader to index
+$loader->addDirectory('app');
+$loader->addDirectory('libs');
+// And set caching to the 'temp' directory on the disc
+$loader->setCacheStorage(new Nette\Caching\Storages\FileStorage('temp'));
+$loader->register(); // Run the RobotLoader
+```
+
+And that's all. From now on, you don't need to use `require`. Great, isn't it?
+
+When RobotLoader encounters duplicate class name during indexing, it throws an exception and informs you about it.
+
+The variable `$loader->autoBuild` determines whether RobotLoader should reindex the scripts if asked for nonexistent class.
+This feature is disabled by default on production server.
+
+If you want RobotLoader to skip some directory, create a file there called `netterobots.txt`:
+
+```
+Disallow: /Zend
+```
+
+From this point on, the Zend directory will not be indexed.
+
+RobotLoader is extremely comfortable and addictive!