squash w/ [300,306] Update section on running the server

Author: korydraughn

docs/getting_started/running.md

@@ -72,7 +72,7 @@ Given that systemd is the most widely used service manager, iRODS provides a ser
 The service file template is located at `/var/lib/irods/packaging/irods.service.template`.
 
 !!! Note
-    As a best practice, modify a copy of the template files. Doing that will help with avoiding issues with upgrades. Template files should always be treated as read-only.
+    As a best practice, modify a copy of the template file. Doing that will help with avoiding issues with upgrades. Template files should always be treated as read-only.
 
 Configuring systemd to use the service file is out of scope for this documentation and is left as an exercise for the reader. Below are a few links which you may find helpful.