Update README.md

README.md

@@ -6,7 +6,7 @@ This is an official CKFinder 3 plugin that adds a watermark to images uploaded w
 
 ## Plugin Installation
 
-See the [Plugin Installation and Configuration](http://docs.cksource.com/ckfinder3-php/plugins.html#plugins_installation_and_configuration) documentation.
+See the [Plugin Installation and Configuration](https://ckeditor.com/docs/ckfinder/ckfinder3-php/plugins.html#plugins_installation_and_configuration) documentation.
 
 ## Configuration Options
 
@@ -76,4 +76,4 @@ $config['ImageWatermark'] = [               ┌───────────
 ## License
 
 Copyright (c) 2007-2016, CKSource - Frederico Knabben. All rights reserved.
-For license details see: [LICENSE.md](https://github.com/ckfinder/ckfinder-plugin-imagewatermark-php/blob/master/LICENSE.md).
+For license details see: [LICENSE.md](https://github.com/ckfinder/ckfinder-plugin-imagewatermark-php/blob/master/LICENSE.md).