Update README.md

README.md

@@ -1,3 +1,78 @@
 Azure Cognitive Search Php SDK
 ==
-...
+**Install:**
+```
+composer require bigoen/azure-search
+```
+
+**Create Azure Service**
+```php
+use Bigoen\AzureSearch\Model\Error;
+use Bigoen\AzureSearch\Model\Field;
+use Bigoen\AzureSearch\Model\Index;
+use Bigoen\AzureSearch\Model\Suggester;
+use Bigoen\AzureSearch\Services\Service;
+use Symfony\Component\HttpClient\HttpClient;
+
+$azureService = new Service('endpoint', 'key', 'version', HttpClient::create());
+```
+
+**Create Index**
+```php
+$index = new Index('demo');
+$index
+    ->addField(new Field('id', Field::TYPE_STRING, true))
+    ->addField(new Field('groupId', Field::TYPE_STRING))
+    ->addField(new Field('title', Field::TYPE_STRING))
+    ->addField(new Field('body', Field::TYPE_STRING))
+    ->addSuggester(new Suggester('livesearch', ['title', 'body']));
+$response = $azureService->createIndex($index);
+if ($response instanceof Error) {
+    // show error message.
+}
+```
+
+**Update Index**
+```php
+$index = $azureService->getIndex('demo');
+foreach ($index->fields as $field) {
+    $field->sortable = false;
+}
+$response = $azureService->updateIndex($index);
+if ($response instanceof Error) {
+    // show error message.
+}
+```
+
+**Delete Index**
+```php
+$isDeleted = $azureService->deleteIndex('demo');
+if ($isDeleted) {
+    // show success message.
+}
+```
+
+**Add Docs/Doc to Index**
+```php
+$azureService->addDocToIndex($parameters['indexName'], new DocInput([
+    'id' => '1',
+    'groupId' => 'group1',
+    'title' => 'Demo title',
+    'body' => 'Demo body',
+]));
+// or multiple.
+$azureService->addDocsToIndex($parameters['indexName'], [
+    new DocInput([
+        'id' => '1',
+        'groupId' => 'group1',
+        'title' => 'Demo title',
+        'body' => 'Demo body',
+    ], Index::ACTION_MERGE_OR_UPLOAD),
+    new DocInput([
+        'id' => '2',
+        'groupId' => 'group1',
+        'title' => 'Demo title 2',
+        'body' => 'Demo body 2',
+    ], Index::ACTION_DELETE),
+]);
+```