SNMP Traps: Document multi-user support in the example config file (#…

…23604)

* SNMP Traps: Document multi-user support in the example config file

* Fixup doc for traps username

pkg/config/config_template.yaml

@@ -3830,10 +3830,8 @@ api_key:
 
     ## @param users - list of custom objects - optional
     ## List of SNMPv3 users that can be used to listen for traps.
-    ## NOTE: Currently the Datadog Agent only supports having a
-    ## single user in this list.
     ## Each user can contain:
-    ##  * username     - string - The username used by devices when sending Traps to the Agent.
+    ##  * user         - string - The username used by devices when sending Traps to the Agent.
     ##  * authKey      - string - (Optional) The passphrase to use with the given user and authProtocol
     ##  * authProtocol - string - (Optional) The authentication protocol to use when listening for traps from this user.
     ##                            Available options are: MD5, SHA, SHA224, SHA256, SHA384, SHA512.
@@ -3844,7 +3842,7 @@ api_key:
     ##                            Defaults to DES when privKey is set.
     #
     # users:
-    # - username: <USERNAME>
+    # - user: <USERNAME>
     #   authKey: <AUTHENTICATION_KEY>
     #   authProtocol: <AUTHENTICATION_PROTOCOL>
     #   privKey: <PRIVACY_KEY>