fix typo error.

Ver ietf-tools#909
 - Legacy-Id: 5120

Author: ejimenez

ietf/settings.py

@@ -261,7 +261,8 @@
 
 # NomCom Tool settings
 ROLODEX_URL = ""
-PUBLIC_KEYS_URL = BASE_DIR + "/publick_keys/"
+PUBLIC_KEYS_URL = BASE_DIR + "/public_keys/"
+NOMCOM_FROM_EMAIL = ''
 
 # Days from meeting to cut off dates on submit
 FIRST_CUTOFF_DAYS = 19