diff --git a/README.md b/README.md
index 8207597..fd20119 100644
--- a/README.md
+++ b/README.md
@@ -113,7 +113,7 @@ Database is a simple json file.
 }
 ```
 
-Here the `comments` and `posts` are tables. They hold an array of the records. They can be empty arrays but they must exist as is.
+Here the `owner` and `posts` are tables. They can be empty arrays/objects but they must exist as is.
 
 **NOTE :** `id`: Column is a must, all parsing uses it.
 
@@ -328,6 +328,10 @@ response:
 }
 ```
 
+#### Query API
+##### Field selection
Give the API consumer the ability to choose returned fields. This will also reduce the network traffic and speed up the usage of the API.

```
GET /cars?fields=manufacturer,model,id,color
```

##### Paging

```
GET /cars?_offset=10&_limit=5
```
+* Add  _offset and _limit (an X-Total-Count header is included in the response).

* To send the total entries back to the user use the custom HTTP header: X-Total-Count.

* Content-Range offset – limit / count.

	* offset: Index of the first element returned by the request.

	* limit: Index of the last element returned by the request.

	* count: Total number of elements in the collection.

* Accept-Range resource max.

* resource: The type of pagination. Must remind of the resource in use, e.g: client, order, restaurant, …

* max 	  : Maximum number of elements that can be returned in a single request.

##### Sorting

* Allow ascending and descending sorting over multiple fields.
* Use sort with underscore as `_sort`.
* In code, descending describe as ` - `, ascending describe as ` + `.

```GET /cars?_sort=-manufactorer,+model```

##### Operators
* Add `_filter` query parameter and continue with field names,operations and values separated by `,`.
* Pattern `_filter=<fieldname><operation><value>`.
* Supported operations.
	* `=` equal
	* `!=` not equal
	* `<` less
	* `<=` less or equals
	* `>` greater
	* `>=` greater or equals
	* `~=` like
	* `|=` in (values must be separated with `|`
	
```GET http://127.0.0.1:8080/robe/users?_filter=name=seray,active=true```

##### Full-text search

* Add `_q`.

```GET /cars?_q=nissan```
+
 ## License
 
 The MIT License (MIT) Copyright (c) 2017 Seray Uzgur