Improve documentation on HAL Explorer.

Fixes #2120.

Author: toedter

src/main/asciidoc/tools.adoc

@@ -5,7 +5,7 @@
 [[tools.hal-explorer]]
 == The HAL Explorer
 
-Kai Tödter has created a useful application: https://github.com/toedter/hal-explorer[HAL Explorer]. It is an Angular based web application that lets you easily explore HAL and HAL-FORMS based HTTP responses. It also supports Spring profiles generated by Spring Data REST. You can point it at any Spring Data REST API and use it to navigate the app and create new resources.
+Kai Tödter has created a useful application: HAL Explorer (https://github.com/toedter/hal-explorer[Git Repo], https://toedter.github.io/hal-explorer/release/reference-doc/[Reference Doc], https://toedter.github.io/hal-explorer/release/hal-explorer/#theme=Cosmo&uri=examples/examples.hal-forms.json[Demo]). It is an Angular based web application that lets you easily explore HAL and HAL-FORMS based HTTP responses. It also supports Spring profiles generated by Spring Data REST. You can point it at any Spring Data REST API and use it to navigate the app and create new resources.
 
 Instead of pulling down the files, embedding them in your application, and crafting a Spring MVC controller to serve them up, all you need to do is add a single dependency.