Update docs/t-sql/functions/text-and-image-functions-textvalid-transact-sql.md

Co-authored-by: Kendra Little <1623675+LitKnd@users.noreply.github.com>

Author: hyoshioka0128

docs/t-sql/functions/text-and-image-functions-textvalid-transact-sql.md

@@ -62,8 +62,8 @@ TEXTVALID ( 'table.column' ,text_ ptr )
 
 |Function or statement|Description|  
 |---------------------------|-----------------|  
-|PATINDEX<b>('</b>_%pattern%_'**,** _expression_**)**|Returns the character position of a specified character string in **text** and **ntext** columns.|  
-|DATALENGTH<b>(</b>_expression_**)**|Returns the length of data in **text**, **ntext**, and **image** columns.|  
+|PATINDEX ( *'_%pattern%_'*, *_expression_* )|Returns the character position of a specified character string in **text** and **ntext** columns.|  
+|DATALENGTH ( *_expression_* )|Returns the length of data in **text**, **ntext**, and **image** columns.| 
 |SET TEXTSIZE|Returns the limit, in bytes, of the **text**, **ntext**, or **image** data to be returned with a SELECT statement.|  
 
 ## Examples