add the brochure for downloading

content/english/start/flyer.md

@@ -1,8 +1,12 @@
 ---
-title: en Brochure
-subtitle: 
+title: Brochure
+description: Download, read, print, and share
 image: 
 comments: false
 ---
 
+<p class="text-brochure">If you'd like to find out more about Chill, download the brochure here. Maybe even print and share it? ;-)</p>
 
+<button class="btn-primary download">
+  <a class="btn-primary" href="/Brochure_Chill_V9.zip">Download the brochure</a>
+</button>