Remove excess newlines.

layouts/shortcodes/image-with-fallback.html

@@ -2,7 +2,6 @@
 }}{{ $url2 := .Get "img2" | default (.Get "fallback") | default (.Get 1)
 }}{{ $alt := .Get "alt" | default (.Get 2)
 }}
-
 <!-- These do not seem to work. Using JS solution.
 <picture>
   <source srcset="{{ $url1 }}">
@@ -13,5 +12,4 @@
   <img src="{{ $url2 }}" alt="{{ $alt }}">
 </picture>
 -->
-
 <img src="{{ $url1 }}" alt="{{ $alt }}" onerror="this.onerror=null; this.src='{{ $url2 }}';">