fix most recent changes to the changelog: (#2561)

- fix indentation
- add links to PRs
- put latest changes to the bottom of each section

Author: nohn

CHANGELOG.md

@@ -29,11 +29,12 @@ and this project adheres to [Semantic Versioning](https://semver.org).
   - Full support of the above CF Rules for the Xlsx Reader and Writer; even when the file being loaded has CF rules listed in the `<extLst><ext><ConditionalFormattings>` element for the worksheet rather than the `<ConditionalFormatting>` element.
   - Provision of a CellMatcher to identify if rules are matched for a cell, and which matching style will be applied.
   - Improved documentation and examples, covering all supported CF rule types.
-  - Add support for one digit decimals (FORMAT_NUMBER_0, FORMAT_PERCENTAGE_0)
+- Add support for one digit decimals (FORMAT_NUMBER_0, FORMAT_PERCENTAGE_0). [PR #2525](https://github.com/PHPOffice/PhpSpreadsheet/pull/2525)
 
 ### Changed
 
-- Additional Russian translations for Excel Functions (courtesy of aleks-samurai)
+- Additional Russian translations for Excel Functions (courtesy of aleks-samurai).
+- Improved code coverage for NumberFormat. [PR #2556](https://github.com/PHPOffice/PhpSpreadsheet/pull/2556)
 
 ### Deprecated
 
@@ -45,7 +46,6 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Fixed
 
-- Fix rounding error in NumberFormat::NUMBER_PERCENTAGE, NumberFormat::NUMBER_PERCENTAGE_00
 - Fix partial function name matching when translating formulae from Russian to English [Issue #2533](https://github.com/PHPOffice/PhpSpreadsheet/issues/2533) [PR #2534](https://github.com/PHPOffice/PhpSpreadsheet/pull/2534)
 - Various bugs related to Conditional Formatting Rules, and errors in the Xlsx Writer for Conditional Formatting [PR #2491](https://github.com/PHPOffice/PhpSpreadsheet/pull/2491)
 - Xlsx Reader merge range fixes.
@@ -65,6 +65,8 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 [PR #2489](https://github.com/PHPOffice/PhpSpreadsheet/pull/2489)
 - Xlsx Reader fix height and width for oneCellAnchorDrawings.
 [PR #2492](https://github.com/PHPOffice/PhpSpreadsheet/pull/2492)
+- Fix rounding error in NumberFormat::NUMBER_PERCENTAGE, NumberFormat::NUMBER_PERCENTAGE_00. [PR #2555](https://github.com/PHPOffice/PhpSpreadsheet/pull/2555)
+
 
 ## 1.21.0 - 2022-01-06