Code cleanup and misc fixes

* Properly implement exceptions.
* Allow passing custom eventloop and poll interval to constructor.
* Fix some typos, cleanup code.

README.md

@@ -1 +1,23 @@
 # Inotify library for ReactPHP
+
+## Installing
+
+```bash
+$ composer repo add noccylabs composer https://dev.noccylabs.info/api/packages/noccylabs/composer
+$ composer require noccylabs/react-inotify
+```
+
+## Usage
+
+```php
+// Create instance; you can pass a poll interval and a custom event loop.
+$inotify = new NoccyLabs\React\Inotify\Inotify(0.1);
+
+// Listen for events
+$in->on("event", function ($event) {
+    var_dump($event);
+});
+
+// Add a watch
+$in->addWatch(__DIR__."/config", IN_CREATE|IN_DELETE|IN_MODIFY);
+```