update README

Author: Amr Alshroof

README.md

@@ -1,35 +1,44 @@
-<snippet>
-  <content><![CDATA[
-# ${1:Project Name}
-TODO: Write a project description
-## Installation
+# Firebase Notifications Yii2
 
-The preferred way to install this extension is through composer.
+This extension will make send firebase notifications easy to do for the Yii2 framework.
+
+## Getting Started
+
+These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.
+
+### Prerequisities
+
+Yii2 application 
+```
+composer require yiisoft/yii2
+```
+
+### Installing
+
+The preferred way to install this extension is through [composer](http://getcomposer.org/download/).
 
 Either run
 
+```
 php composer.phar require --prefer-dist "opensooq/yii2-firebase-notifications": "dev-master"
 
+```
+
 or add
 
+```
 "opensooq/yii2-firebase-notifications": "dev-master"
-
+```
 to the require section of your composer.json file.
 
 ## Usage
-TODO: Write usage instructions
-## Contributing
-1. Fork it!
-2. Create your feature branch: `git checkout -b my-new-feature`
-3. Commit your changes: `git commit -am 'Add some feature'`
-4. Push to the branch: `git push origin my-new-feature`
-5. Submit a pull request :D
-## History
-TODO: Write history
-## Credits
-TODO: Write credits
-## License
-TODO: Write license
-]]></content>
-  <tabTrigger>readme</tabTrigger>
-</snippet>
+
+```ruby
+$service = new FirebaseNotifications('YOUR_KEY');
+
+$service->send($tokens,$message);
+```
+you can clone the android build [here](https://github.com/Amr-alshroof/Fcm-Android),
+and use it to test your code.
+
+