face: fix controller creation bug that dismisses nrd-0.1 as unsupported

refs: #1398

Change-Id: Icde191b4e5528b15cda2a569248b7038162bd8c3
diff --git a/client.conf.sample b/client.conf.sample
index 6cde2eb..7e31b04 100644
--- a/client.conf.sample
+++ b/client.conf.sample
@@ -1,7 +1,7 @@
 ; "unix_socket" specifies the location of the NFD unix socket
 unix_socket=/var/run/nfd.sock
 
-; "protocol" deteremines the protocol for prefix registration
+; "protocol" determines the protocol for prefix registration
 ; it has a value of:
 ;   nfd-0.1
 ;   nrd-0.1