update README.md

Author: ilzrv

README.md

@@ -4,12 +4,56 @@
  * Laravel 5.5+
 
 ## Installation
-Install the package
+You can install the package via composer:
 ```bash
 composer require ilzrv/laravel-slow-query-detector
 ```
 
-Publish the configuration file
+## Configuration
+By default, the package is already configured and enabled, but you can change the settings if necessary.
+To publish the configuration file, run:
 ```bash
 php artisan vendor:publish --provider="Ilzrv\LaravelSlowQueryDetector\ServiceProvider"
 ```
+
+### `SQD_ENABLED`
+Determines whether query listening is enabled.
+
+### `SQD_CODE_MAX_QUERIES`
+Maximum number of queries when processing the controller method.
+If your method executes more queries than this value the notification will be received.
+
+### `SQD_CODE_MAX_TIME`
+Maximum execution time of the controller method (in ms).
+If your method takes longer than this value to complete the notification will be received.
+
+### `SQD_QUERY_BINDINGS`
+Queries with bindings.
+If true then bindings will be applied to queries in notification.
+Example (if true): `select * from users where name = John` instead of `select * from users where name = ?`
+
+### `SQD_QUERY_MAX_TIME`
+Maximum execution time for each query in DB (in ms).
+If at least one query exceeds this value
+you will receive a notification.
+
+## Example logs output:
+```bash
+[2020-04-12 06:59:21] production.CRITICAL: Array
+(
+    [SQD] => Array
+        (
+            [Execution Time] => 60 ms.
+            [Queries Count] => 2
+            [Heavy Queries Count] => 2
+            [Full URL] => https://example.org/?name=John
+            [Action] => App\Http\Controllers\HomeController@index
+            [Heaviest Query] => Array
+                (
+                    [Query] => select * from `users` where `name` = John
+                    [Time] => 50.67 ms.
+                )
+
+        )
+)
+```