Fix links in hero unit

source/_includes/custom/welcome.html

@@ -4,7 +4,7 @@
 Home Assistant is an open-source home automation platform running on Python 3. Track and control all devices at home and automate control. Installation in less then a minute.
 </p>
 <p class='hero-buttons'>
-  <a href='{{ root_url }}/demo' target='_blank' class='btn'>View demo</a>
+  <a href='{{ root_url }}/demo/' target='_blank' class='btn'>View demo</a>
-  <a href='{{ root_url }}/getting-started' class='btn'>Get started</a>
+  <a href='{{ root_url }}/getting-started/' class='btn'>Get started</a>
   <a href='https://www.github.com/balloob/home-assistant' class='btn'>Browse code on GitHub</a>
 </p>

source/_includes/site/hero_unit.html

@@ -2,7 +2,7 @@
   <div class="grid-wrapper">
     <div class="grid flex">
       <div class="grid__item flex__item two-fifths palm-one-whole">
-        <a href='{{ root_url }}screenshots/'>
+        <a href='{{ root_url }}/demo/' target='_blank'>
           <img src="{{ root_url }}/images/hero_screenshot.png" alt="Home Assistant screenshot">
         </a>
       </div>

source/screenshots/index.markdown

@@ -1,13 +0,0 @@
----
-layout: page
-title: "Screenshots"
-date: 2014-12-21 13:27
-sidebar: false
-comments: true
-sharing: true
-footer: true
----
-
-<a href='{{root_url}}/images/screenshots/screenshot-devices.png'>
-    <img src='{{root_url}}/images/screenshots/screenshot-devices.png' />
-</a>