FIX: do not resize xkcd image

FIX: do not resize xkcd image

diff --git a/lib/onebox/version.rb b/lib/onebox/version.rb
index 8017d2e..f19f6a4 100644
--- a/lib/onebox/version.rb
+++ b/lib/onebox/version.rb
@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module Onebox
-  VERSION = "1.9.19"
+  VERSION = "1.9.20"
 end
diff --git a/templates/xkcd.mustache b/templates/xkcd.mustache
index e338ef6..5d81457 100644
--- a/templates/xkcd.mustache
+++ b/templates/xkcd.mustache
@@ -1,5 +1,7 @@
 <h3><a href='{{link}}' target='_blank'>{{title}}</a></h3>
 
-<img src="{{image}}" />
+{{#image}}
+  <div class="xkcd-image"><img src="{{image}}"/></div>
+{{/image}}
 
 <p>{{description}}</p>

GitHub sha: 82986e31

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