Update readme, and swap files to gitignore

Author: amouhzi

.gitignore

@@ -3,4 +3,5 @@ vendor/*
 .buildpath
 .project
 .settings/*
-composer.lock
+composer.lock
+*~

README.md

@@ -5,29 +5,28 @@ PHP Curl Class is an object-oriented wrapper of the PHP cURL extension.
 ### Quick Start and Examples
 
 ```php
-require 'Curl.class.php';
 
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->get('http://www.example.com/');
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->get('http://www.example.com/search', array(
     'q' => 'keyword',
 ));
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->post('http://www.example.com/login/', array(
     'username' => 'myusername',
     'password' => 'mypassword',
 ));
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->setBasicAuthentication('username', 'password');
 $curl->setUserAgent('');
 $curl->setReferrer('');
@@ -47,29 +46,29 @@ var_dump($curl->response_headers);
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->setopt(CURLOPT_RETURNTRANSFER, TRUE);
 $curl->setopt(CURLOPT_SSL_VERIFYPEER, FALSE);
 $curl->get('https://encrypted.example.com/');
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->put('http://api.example.com/user/', array(
     'first_name' => 'Zach',
     'last_name' => 'Borboa',
 ));
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->patch('http://api.example.com/profile/', array(
     'image' => '@path/to/file.jpg',
 ));
 ```
 
 ```php
-$curl = new Curl();
+$curl = new Curl\Curl();
 $curl->delete('http://api.example.com/user/', array(
     'id' => '1234',
 ));