Fixes OpenHub icon link

Author: arcivanov

_layouts/post.html

@@ -35,7 +35,7 @@ <h1>{{ page.title }}</h1>
                     {% if author.openhub %}
                     <a rel="author" href="https://www.openhub.net/accounts/{{ author.openhub }}"
                        title="{{ author.name }}'s OpenHub">
-                        <img src="//external-content.duckduckgo.com/ip/www.openhub.net.ico" alt="OpenHub Logo"></a>
+                        <img src="//external-content.duckduckgo.com/ip/openhub.net.ico" alt="OpenHub Logo"></a>
                     {% endif %}
                     {% if author.twitter %}
                     <a rel="author" href="https://twitter.com/{{ author.twitter }}" title="{{ author.name }}'s Twitter">