fix rss title for blog

blog_feed.xml

@@ -10,7 +10,7 @@ layout: null
     <atom:link href="{{ site.url }}/feed.xml" rel="self" type="application/rss+xml" />
     {% for post in site.categories['blog'] limit:10 %}
       <item>
-        <title>Chi Hack Night #{{ post.event_id }}: {{ post.title }}</title>
+        <title>{{ post.title }}</title>
         <description>{{ post.date  | date: "%b, %d %Y 6pm" }} {{ post.content | xml_escape }}</description>
         <pubDate>{{ post.date | date: "%a, %d %b %Y %H:%M:%S %z" }}</pubDate>
         <link>{{ site.url }}{{ post.url }}</link>