tutorial mismatch description

[wuyunfeng]

https://github.com/baidu/palo/blob/master/docs/user_guide/tutorial.md

示例：以 "table2_20170707"为Label，使用HDFS上的文件导入table2表

LOAD LABEL table1_20170707
(
DATA INFILE("hdfs://your.namenode.host:port/dir/table2_data")
INTO TABLE table2
)
WITH BROKER hdfs ("username"="hdfs_user", "password"="hdfs_password")
PROPERTIES
(
"timeout"="3600",
"max_filter_ratio"="0.1"
);

table1_20170707 should be table2_20170707

[morningman]

Done