added ability to guess filenames based on content-type header

Author: Athlon1600

README.md

@@ -1,6 +1,8 @@
 # Download large files using PHP and cURL
 
-There's too many code snippets on the Internet on how to do this, but not enough libraries. So I made this.
+There's too many code snippets on the Internet on how to do this, but not enough libraries. 
+
+This will allow you to download files of any size using cURL without ever running out of memory. That's it.
 
 ```php
 <?php
@@ -11,11 +13,18 @@ use CurlDownloader\CurlDownloader;
 $browser = new Client();
 $downloader = new CurlDownloader($browser);
 
-$downloader->download("https://download.ccleaner.com/cctrialsetup.exe", function ($filename) {
+$response = $downloader->download("https://download.ccleaner.com/cctrialsetup.exe", function ($filename) {
     return './2020-06-07-' . $filename;
 });
+
+if ($response->status == 200) {
+    // 28,851,928 bytes downloaded in 20.041231 seconds
+    echo number_format($response->info->size_download) . ' bytes downloaded in ' . $response->info->total_time . ' seconds';
+}
 ```
 
+It will automatically guess filename of the resource being downloaded (just like web-browsers do it!) with an option to override it if needed.
+
 ## Installation
 
 ```bash
@@ -24,5 +33,6 @@ composer require athlon1600/php-curl-file-downloader
 
 ### Links
 
+- https://github.com/Athlon1600/php-curl-client
 - https://demo.borland.com/testsite/download_testpage.php
 

composer.json

@@ -1,7 +1,8 @@
 {
     "name": "athlon1600/php-curl-file-downloader",
     "require": {
-        "athlon1600/php-curl-client": "^1.0"
+        "athlon1600/php-curl-client": "^1.0",
+        "ext-curl": "*"
     },
     "require-dev": {
         "phpunit/phpunit": "^7.0"