docs: #6 badge and example

Author: shaunthegeek

README.md

@@ -1,2 +1,36 @@
-# coding-sdk-php
-CODING SDK for PHP
+# CODING SDK for PHP
+
+[![codecov](https://codecov.io/gh/Coding/coding-sdk-php/branch/main/graph/badge.svg?token=aaJqvjWodd)](https://codecov.io/gh/Coding/coding-sdk-php)
+[![CI](https://github.com/Coding/coding-sdk-php/actions/workflows/ci.yml/badge.svg)](https://github.com/Coding/coding-sdk-php/actions/workflows/ci.yml)
+[![Total Downloads](http://poser.pugx.org/coding/sdk/downloads)](https://packagist.org/packages/coding/sdk)
+[![PHP Version Require](http://poser.pugx.org/coding/sdk/require/php)](https://www.php.net/supported-versions.php)
+
+## Install
+
+```shell
+composer require coding/sdk
+```
+
+## Examples
+
+### Create Iteration
+
+```php
+<?php
+
+require 'vendor/autoload.php';
+
+use Coding\Iteration;
+
+$iteration = new Iteration('c127894e5a851cef22dc317f882dfb9ca6054321');
+$projectName = 'project-foo';
+$result = $iteration->create([
+    'ProjectName' => $projectName,
+    'Name' => 'Sprint 1',
+]);
+echo "https://my-team.coding.net/p/{$projectName}/iterations/${result['Code']}/issues\n";
+```
+
+## Resources
+
+- [CODING OPEN API](https://help.coding.net/openapi)