Update the Table Formatter section

[sukhova]

Environment

• Documentation version: 7.2
• Part of the documentation: Reports
• Existing page: https://doc.cuba-platform.com/reporting-7.2/reporting.html#table_output

Description of the bug or enhancement

Update the Table Formatter section according this issue: https://github.com/cuba-platform/reports/issues/254

[sukhova]

There are no changes in screenshots or descriptions