change departname to department

zh/05.2.md

@@ -21,7 +21,7 @@ Go中支持MySQL的驱动目前比较多，有如下几种，有些是支持data
 CREATE TABLE `userinfo` (
 	`uid` INT(10) NOT NULL AUTO_INCREMENT,
 	`username` VARCHAR(64) NULL DEFAULT NULL,
-	`departname` VARCHAR(64) NULL DEFAULT NULL,
+	`department` VARCHAR(64) NULL DEFAULT NULL,
 	`created` DATE NULL DEFAULT NULL,
 	PRIMARY KEY (`uid`)
 );
@@ -51,7 +51,7 @@ func main() {
 	checkErr(err)
 
 	//插入数据
-	stmt, err := db.Prepare("INSERT userinfo SET username=?,departname=?,created=?")
+	stmt, err := db.Prepare("INSERT userinfo SET username=?,department=?,created=?")
 	checkErr(err)
 
 	res, err := stmt.Exec("astaxie", "研发部门", "2012-12-09")