Fix dump spelling error.

www/faq.html

@@ -236,7 +236,7 @@
     for each node so that you may look at it it later. For each node,
     the console log is stored as <tt>/var/log/tiplogs/pcXXX.run</tt>.
     This <em>run</em> file is created when nodes are first allocated
-    to an expirement, and the unix permissions of the run files permit
+    to an experiment, and the unix permissions of the run files permit
     just members of the project to view them. When the nodes are
     deallocated, the run files are cleared, so if you want to save
     them, you must do so before terminating the experiment.