docs: move demo URL to home.html

Signed-off-by: Varun Patil <radialapps@gmail.com>

docs/overrides/home.html

@@ -280,7 +280,7 @@
           <a href="{{ page.next_page.url | url }}" title="{{ page.next_page.title | striptags }}" class="md-button md-button--primary">
             Install
           </a>
-          <a href="{{ config.demo_url }}" class="md-button">
+          <a href="https://memories-demo.radialapps.com/apps/memories/" class="md-button">
             Demo
           </a>
         </div>

mkdocs.yml

@@ -1,7 +1,6 @@
 site_name: Memories
 repo_url: https://github.com/pulsejet/memories
 repo_name: pulsejet/memories
-demo_url: https://memories-demo.radialapps.com/apps/memories/
 
 theme:
   name: material