minor text improvements

docs/dscr-templates/template-system-table.md

-## system.table\_name {#system-tables-table-name}
+## system.table\_name {#system-tables_table-name}
 
 Description.
 
 Columns:
 
--   `column_name` ([data\_type\_name](data_type_uri)) — Description.
+-   `column_name` ([data\_type\_name](path/to/data_type.md)) — Description.
 
 **Example**
 
@@ -13,9 +13,9 @@ SELECT * FROM system.table_name
 ```
 
 ``` text
-Some output. It shouldn't be long.
+Some output. It shouldn't be too long.
 ```
 
 **See Also**
 
--   [Article name](uri) — Some words about referenced information.
+-   [Article name](path/to/article_name.md) — Some words about referenced information.