fix

Author: huaxingao

docs/sql-ref-literals.md

@@ -145,13 +145,13 @@ A numeric literal is used to specify a fixed or floating-point number.
 
 #### Integral Literal
 
-#### Syntax
+##### Syntax
 
 ```sql
 [ + | - ] digit [ ... ] [ L | S | Y ]
 ```
 
-#### Parameters
+##### Parameters
 
 * **digit**
 
@@ -173,7 +173,7 @@ A numeric literal is used to specify a fixed or floating-point number.
 
     Indicates a 4-byte signed integer number.
 
-#### Examples
+##### Examples
 
 ```sql
 SELECT -2147483648 AS col;
@@ -207,7 +207,7 @@ SELECT 482S AS col;
 
 #### Fractional Literals
 
-#### Syntax
+##### Syntax
 
 decimal literals:
 ```sql
@@ -229,7 +229,7 @@ and exponent is defined as
 E [ + | - ] digit [ ... ]
 ```
 
-#### Parameters
+##### Parameters
 
 * **digit**
 
@@ -243,7 +243,7 @@ E [ + | - ] digit [ ... ]
 
     Case insensitive, indicates `DECIMAL`, with the total number of digits as precision and the number of digits to right of decimal point as scale.
 
-#### Examples
+##### Examples
 
 ```sql
 SELECT 12.578 AS col;
@@ -337,7 +337,7 @@ A Datetime literal is used to specify a datetime value.
 
 #### Date Literal
 
-#### Syntax
+##### Syntax
 
 ```sql
 DATE { 'yyyy' |
@@ -347,7 +347,7 @@ DATE { 'yyyy' |
 ```
 Note: defaults to `01` if month or day is not specified.
 
-#### Examples
+##### Examples
 
 ```sql
 SELECT DATE '1997' AS col;
@@ -374,7 +374,7 @@ SELECT DATE '2011-11-11' AS col;
 
 #### Timestamp Literal
 
-#### Syntax
+##### Syntax
 
 ```sql
 TIMESTAMP { 'yyyy' |
@@ -399,7 +399,7 @@ Note: defaults to `00` if hour, minute or second is not specified.
 
 Note: defaults to the session local timezone (set via `spark.sql.session.timeZone`) if `zone_id` is not specified.
 
-#### Examples
+##### Examples
 
 ```sql
 SELECT TIMESTAMP '1997-01-31 09:26:56.123' AS col;

docs/sql-ref-syntax-aux-show-functions.md

@@ -9,6 +9,7 @@ license: |
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at
+
      http://www.apache.org/licenses/LICENSE-2.0
  
   Unless required by applicable law or agreed to in writing, software

docs/sql-ref-syntax-ddl-alter-table.md

@@ -91,7 +91,7 @@ ALTER TABLE table_identifier { ALTER | CHANGE } [ COLUMN ] col_spec alterColumnA
 
 * **COLUMNS ( col_spec )**
 
-    Specifies the columns to be added.
+    Specifies the column to be altered or be changed.
 
 * **alterColumnAction**
 
@@ -204,6 +204,7 @@ ALTER TABLE table_identifier [ partition_spec ] SET LOCATION 'new_location'
 * **table_identifier**
 
     Specifies a table name, which may be optionally qualified with a database name.
+
     **Syntax:** `[ database_name. ] table_name`
 
 * **partition_spec**

docs/sql-ref-syntax-qry-select-inline-table.md

@@ -37,7 +37,7 @@ VALUES ( expression [ , ... ] ) [ table_alias ]
 
 * **table_alias**
 
-    Specifies a temporary name with an optional column name list. <br><br>
+    Specifies a temporary name with an optional column name list.
     **Syntax:** `[ AS ] table_name [ ( column_name [ , ... ] ) ]`
 
 ### Examples

docs/sql-ref-syntax-qry-window.md

@@ -52,7 +52,7 @@ window_function OVER
 
 * **window_frame**
 
-    Specifies which row to start the window on and where to end it.<br>
+    Specifies which row to start the window on and where to end it.
 
     **Syntax:**