Fix the RSS feed truncation to avoid truncating in the middle of an e…

…ntity

feed.xml

@@ -17,7 +17,7 @@ layout: null
                 {{ post.url | prepend: site.url }}
             </link>
             <description>
-                {{ post.content | strip_html | truncate: '400'  }}
+                {{ post.content | strip_html | truncatewords: '50' }}
             </description>
             <pubDate>{{ post.date | date_to_rfc822 }}</pubDate>
             <guid>