Fix README

README.md

@@ -40,6 +40,7 @@ theme = "juice"
 You can customize your **hero** by using `hero` block in the `index.html`.
 
 ```html
+{% extends "juice/templates/index.html" %}
 {% block hero %}
     <div>
         Your cool hero html...
@@ -108,7 +109,7 @@ repository_url = "https://github.com/huhu/juice"
 
 # Showcases
 
-Please see the [showcases page](/showcases).
+Please see the [showcases page](https://juice.huhu.io/showcases).
 
 # Contributing
 
@@ -117,4 +118,4 @@ Thank you very much for considering contributing to this project!
 We appreciate any form of contribution:
 
 - New issues (feature requests, bug reports, questions, ideas, ...)
-- Pull requests (documentation improvements, code improvements, new features, ...)
+- Pull requests (documentation improvements, code improvements, new features, ...)