fix docs typo (#4725)

docs/en/sql-reference/sql-functions/aggregate-functions/stddev_samp.md

@@ -43,4 +43,4 @@ MySQL > select stddev_samp(scan_rows) from log_statis group by datetime;
 +--------------------------+
 ```
 ## keyword
-STDDEVu SAMP,STDDEV,SAMP
+STDDEV SAMP,STDDEV,SAMP

docs/en/sql-reference/sql-functions/bitmap-functions/to_bitmap.md

@@ -30,7 +30,7 @@ under the License.
 
 `BITMAP TO_BITMAP(expr)`
 
-Convert an unsigned bigint (ranging from 0 to 18446744073709551615) to a bitmap containing that value. Mainly be used to load interger value into bitmap column, e.g.,
+Convert an unsigned bigint (ranging from 0 to 18446744073709551615) to a bitmap containing that value. Mainly be used to load integer value into bitmap column, e.g.,
 
 ```
 cat data | curl --location-trusted -u user:passwd -T - -H "columns: dt,page,user_id, user_id=to_bitmap(user_id)"   http://host:8410/api/test/testDb/_stream_load

docs/en/sql-reference/sql-functions/spatial-functions/st_astext.md

@@ -28,7 +28,7 @@ under the License.
 ## Description
 ### Syntax
 
-'VARCHAR ST'u AsText (GEOMETRY geo)'
+'VARCHAR ST_AsText (GEOMETRY geo)'
 
 
 Converting a geometric figure into a WKT (Well Known Text) representation

docs/en/sql-reference/sql-functions/spatial-functions/st_geometryfromtext.md

@@ -28,7 +28,7 @@ under the License.
 ## Description
 ### Syntax
 
-'GEOMETRY ST'u GeometryFromText (VARCHAR wkt)'
+'GEOMETRY ST_GeometryFromText (VARCHAR wkt)'
 
 
 Converting a WKT (Well Known Text) into a corresponding memory geometry

docs/en/sql-reference/sql-functions/spatial-functions/st_polygon.md

@@ -28,7 +28,7 @@ under the License.
 ## Description
 ### Syntax
 
-'GEOMETRY ST'u Polygon (VARCHAR wkt)'
+'GEOMETRY ST_Polygon (VARCHAR wkt)'
 
 
 Converting a WKT (Well Known Text) into a corresponding polygon memory form

docs/en/sql-reference/sql-functions/string-functions/locate.md

@@ -28,7 +28,7 @@ under the License.
 ## Description
 ### Syntax
 
-'INT LOCATION (WARCHAR substrate, WARCHAR str [, INT pos]]'
+'INT LOCATION (VARCHAR substrate, VARCHAR str [, INT pos]]'
 
 
 Returns where substr appears in str (counting from 1). If the third parameter POS is specified, the position where substr appears is found from the string where STR starts with POS subscript. If not found, return 0

docs/en/sql-reference/sql-functions/string-functions/lower.md

@@ -28,7 +28,7 @@ under the License.
 ## Description
 ### Syntax
 
-'INT lower (WARCHAR str)'
+'INT lower (VARCHAR str)'
 
 
 Convert all strings in parameters to lowercase