Fixed typo in Phame user guide

Summary: adminstrator → administrator

Test Plan: read again the sencence

Reviewers: btrahan, #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley

Differential Revision: https://secure.phabricator.com/D10904

Author: dereckson

src/docs/user/userguide/phame.diviner

@@ -48,7 +48,7 @@ Phabricator instance. e.g. by IP address.
 
 = Comment Widgets =
 
-Phame supports comment widgets from Facebook and Disqus. The adminstrator
+Phame supports comment widgets from Facebook and Disqus. The administrator
 of the Phabricator instance must properly configure Phabricator to enable
 this functionality.