✏️ added readme

Author: Boris Stelmakh

README.md

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+# Overview
+
+Tiny router for tiny projects without MVC.
+Converts http://example.com/test to ./controllers/test.php
+
+# Installation
+
+You can install in using composer:
+
+`composer require mikechip/router`
+
+Or just include classes from _/src_
+
+# Usage
+
+```
+<?php
+    require_once('vendor/autoload.php');
+
+    /*
+     * Directory where your controllers are located
+     */
+    $controller_dir = __DIR__ . '/test_controllers';
+
+    /*
+     * Optional. URI that client requested.
+     * $_SERVER['REQUEST_URI'] is used by default.
+     * Use only if it is highly needed (for example, in ReactPHP)
+     */
+    $request_uri = $_SERVER['REQUEST_URI'];
+
+    /*
+     * Create new Router object and get result
+     */
+    $router = new Mike4ip\Router\Router( $controller_dir, $request_uri );
+    $result = $router->getResult();
+
+    try {
+        /*
+         * Run controller.
+         * For example: if you requested /test,
+         * it runs $controller_dir/test.php
+         */
+        require(
+            $result->getController()
+        );
+    } catch(Mike4ip\Router\NotFoundException $e) {
+        /*
+         * If controller you need is not found
+         */
+        http_response_code(404);
+        print('Page not found');
+    }
+```
+
+Or use simple shortcut:
+
+```
+<?php
+    require_once('vendor/autoload.php');
+    $controller_dir = __DIR__ . '/test_controllers';
+    \Mike4ip\Router\Router::autorun();
+```
+
+# Feedback
+
+You are welcome at Issues: https://github.com/mikechip/php7-router/issues