the sql-reference doc review，i have some doubts #1656

一、github上sql-reference
1、dayofweek(DATETIME date)描述不清晰
原来：参数为Date或者Datetime类型； 纠正信息：可cast到date的数字也可以
地址：https://github.com/apache/incubator-doris/blob/master/docs/documentation/cn/sql-reference/sql-functions/date-time-functions/dayofweek.md

2、ST_Polygon建议补充信息：多边形不能交叉
关键字不能用：

地址：https://github.com/apache/incubator-doris/blob/master/docs/documentation/cn/sql-reference/sql-functions/spatial-functions/st_polygon.md

3、建议补充圆的半径最大值信息【超过8位数，就不准了】
SELECT ST_AsText(ST_Circle(111, -64, 123456789));
地址：https://github.com/apache/incubator-doris/blob/master/docs/documentation/cn/sql-reference/sql-functions/spatial-functions/st_circle.md

二、doris官网
1、导入，分隔符与描述的不一致

地址：http://doris.apache.org/Docs/cn/getting-started/basic-usage.html#id10

2、描述错误：int 类型占4字节

地址：http://doris.apache.org/Docs/cn/getting-started/data-model-rollup.html

3、错别字

地址：http://doris.apache.org/Docs/cn/getting-started/data-model-rollup.html

4、序号有误

地址：http://doris.apache.org/Docs/cn/getting-started/best-practice.html

5、数据划分 错别字

三、命令行里help文档
1、help create table：

2、范围是否正确

3、help mini load

4、help largeint

5、help create file