Update README.md

Author: zhaoterryy

README.md

@@ -28,7 +28,7 @@ Use `page.meta.revision_date` in templates to access the revision date of the cu
 <p>{% if config.copyright %}
 <small>{{ config.copyright }}<br></small>
 {% endif %}
-<small>Documentation built with <a href="http://www.mkdocs.org/">MkDocs</a> and <a href="https://sourcefoundry.org/cinder/">Cinder theme.</a></small>
+<small>Documentation built with <a href="http://www.mkdocs.org/">MkDocs</a>.</small>
 {% if page.meta.revision_date %}
 <small><br><i>Updated {{ page.meta.revision_date }}</i></small>
 {% endif %}