make image fluid

Signed-off-by: Nico Schottelius <nico@nico-notebook.schottelius.org>

content/u/deals/penguin-day-2020-01-06/contents.lr

@@ -1,3 +1,5 @@
+_model: page-2020
+---
 title: Penguin Day 2020
 ---
 subtitle: Draw your own cute penguin and get 10% discount

content/u/deals/valentine-machine-2020/contents.lr

@@ -2,9 +2,11 @@ title: Valentine Machine 2020
 ---
 subtitle: A different present
 ---
+_model: page-2020
+---
 _hidden: no
 ---
-_discoverable: yes!
+_discoverable: yes
 ---
 content:
 
@@ -14,7 +16,7 @@ Imagine this: instead of the always same present, you give your
 beloved ones something that is creative. Something that they can enjoy
 not online today, but also tomorrow.
 
-![](/u/image/valentine-machine.jpg)
+<img src="/u/image/valentine-machine.jpg" class="img-fluid">
 
 Should it be yet-another raspberry PI? Or a robot vacuum? Haven't we
 seen all of those for Valentine's already?

models/deals.ini

@@ -13,4 +13,3 @@ type = string
 
 [children]
 order_by = -pub_date, title
-model = page-2020