adjust documentation website path

Author: llaville

README.md

@@ -14,7 +14,7 @@ Easily install PHP extensions and tools in Docker containers.
 
 ## Documentation
 
-All the documentation is available on [website](https://llaville.github.io/docker-php-toolbox),
+All the documentation is available on [website](https://llaville.github.io/docker-php-toolbox/1.x/),
 generated from the [docs](https://github.com/llaville/docker-php-toolbox/tree/master/docs) folder.
 
-- [Getting Started](https://llaville.github.io/docker-php-toolbox/getting-started/).
+- [Getting Started](https://llaville.github.io/docker-php-toolbox/1.x/getting-started/).