Update README.md

Author: slashdoom

README.md

@@ -8,6 +8,6 @@ commercial product.  I wouldn't consider it complete but might make a nice start
 
 Configure an FTP server such as VSFTP and point your CUCM server to FTP CDR records to it.  This script will demonize and 
 process those CDR files upon arrival.  It will send the CDR information to your ElasticSearch server and move the CDR file from 
-the FTP root directory to an archive directory which can be purge as you see fit.
+the FTP root directory to an archive directory which can be purged as you see fit.
 
 Script requires the official ElasticSearch python module and python-daemon (tested with 1.6.1).