📝 Added documentation

Author: Artem Shteltser

README.md

@@ -1 +1,88 @@
 # PHP Client for PowerLink CRM
+
+It's php wrapper for [PowerLink CRM Api](https://github.com/powerlink/Rest-API), that uses [Guzzle HTTP Framework](https://github.com/guzzle/guzzle).
+
+## Install
+
+```bash
+composer require stelzer/php-powerlink
+```
+
+## Usage
+
+```php
+<?php
+
+require_once "vendor/autoload.php";
+
+use \PowerLink\PowerLink as API;
+
+$payload = array('your payload');
+$token_id = '<YOUR TOKEN ID>';
+$client = new API($token_id);
+
+$client->create();
+```
+
+## Methods
+
+### Create
+
+**Params**
+
+- object_type — `string`
+- params — `array`
+
+```php
+$object_type = 'crmorder';
+$params = array('your object');
+$client->create($object_type, $params);
+```
+
+### Update
+
+**Params**
+
+- object_type — `string`
+- object_id — `int`
+- params — `array`
+
+```php
+$object_type = 'crmorder';
+$object_id = 1;
+$params = array('your object');
+$client->update($object_type, $object_id, $params);
+```
+
+### Delete
+
+**Params**
+
+- object_type — `string`
+- object_id — `int`
+
+```php
+$client->delete($object_type, $object_id);
+```
+
+### Query
+
+```php
+use \PowerLink\PowerLink as API;
+use \PowerLink\Query;
+
+$token_id = '<YOUR TOKEN ID>';
+$client = new API($token_id);
+
+$query = new Query();
+$query->setQuery(array(
+    array('name', '=', '10'), 'AND', array('second_field', '>=', 20)
+));
+
+$query->setPageNumger(2);
+$query->setPageSize(20);
+$query->setFields(array('first_field', 'second_field'));
+$query->setOrderBy('third_field', 'asc');
+
+$client->query($query);
+```