Added missing time value and path key to example

Author: mutewinter

source/use-cases/storing-log-data.txt

@@ -94,7 +94,8 @@ log entry:
         host: "127.0.0.1",
         logname: null,
         user: 'frank',
-        time:  ,
+        time: ISODate("2000-10-10T20:55:36Z"),
+        path: "/apache_pb.gif",
         request: "GET /apache_pb.gif HTTP/1.0",
         status: 200,
         response_size: 2326,