Add section for export plugin

Author: yajra

buttons-installation.md

@@ -1,5 +1,7 @@
 # Buttons Plugin Installation
 
+Github: https://github.com/yajra/laravel-datatables-buttons
+
 Run the following command in your project to get the latest version of the plugin:
 
 `composer require yajra/laravel-datatables-buttons:^9.0`

fractal-installation.md

@@ -1,5 +1,7 @@
 # Fractal Plugin Installation
 
+Github: https://github.com/yajra/laravel-datatables-fractal
+
 Run the following command in your project to get the latest version of the plugin:
 
 `composer require yajra/laravel-datatables-fractal:^9.0`

html-installation.md

@@ -2,11 +2,14 @@
 
 ## Installation
 
+Github: https://github.com/yajra/laravel-datatables-html
+
 Run the following command in your project to get the latest version of the plugin:
 
 `composer require yajra/laravel-datatables-html:^9.0`
 
 ## Configuration
+
 > This step is optional if you are using Laravel 5.5
 
 Open the file ```config/app.php``` and then add following service provider.