CHANGELOG: fix bullet consistency

Author: jrfnl

README.md

@@ -91,28 +91,28 @@ All code within the PHPCompatibility organisation is released under the GNU Less
 
 This is a maintenance release.
 
-- The recommended version of the [Composer PHPCS plugin] is now `^1.0.0`.
-- README: Fixed some broken badges.
-- General housekeeping and maintenance. Including a contribution by [@fredden].
+* The recommended version of the [Composer PHPCS plugin] is now `^1.0.0`.
+* README: Fixed some broken badges.
+* General housekeeping and maintenance. Including a contribution by [@fredden].
 
 ### 2.1.3 - 2022-10-25
 
-- README: Updated the installation instructions for [compatibility with Composer >= 2.2][composer22announce].
-- Composer: The package will now identify itself as a static analysis tool. Thanks [@GaryJones]!
-- Other housekeeping and minor documentation updates.
+* README: Updated the installation instructions for [compatibility with Composer >= 2.2][composer22announce].
+* Composer: The package will now identify itself as a static analysis tool. Thanks [@GaryJones]!
+* Other housekeeping and minor documentation updates.
 
 [composer22announce]: https://blog.packagist.com/composer-2-2/#more-secure-plugin-execution
 
 ### 2.1.2 - 2021-02-15
 
-- The recommended version of the [Composer PHPCS plugin] is now `^0.7.0`, which offers compatibility with Composer 2.0.
-- The ruleset is now also tested against PHP 7.4 and 8.0.
+* The recommended version of the [Composer PHPCS plugin] is now `^0.7.0`, which offers compatibility with Composer 2.0.
+* The ruleset is now also tested against PHP 7.4 and 8.0.
     Note: full PHP 7.4 support is only available in combination with PHP_CodeSniffer >= 3.5.6.
     Note: runtime PHP 8.0 support is only available in combination with PHP_CodeSniffer >= 3.5.7, full support is expected in PHP_CodeSniffer 3.6.0.
 
 ### 2.1.1 - 2019-08-29
 
-- The recommended version of the [Composer PHPCS plugin] is now `^0.5.0`.
+* The recommended version of the [Composer PHPCS plugin] is now `^0.5.0`.
 
 ### 2.1.0 - 2018-12-16
 
@@ -122,11 +122,11 @@ This is a maintenance release.
 
 ### 2.0.0 - 2018-10-07
 
-- Ruleset: Updated for Joomla 3.9.
-- Ruleset: Updated for compatibility with PHPCompatibility 9.0+.
-- Composer: Added dependencies for the dedicated polyfill-based PHPCompatibility rulesets.
-- CI: Added a test for the ruleset.
-- Readme: Removed the installation instructions for a non-Composer based install.
+* Ruleset: Updated for Joomla 3.9.
+* Ruleset: Updated for compatibility with PHPCompatibility 9.0+.
+* Composer: Added dependencies for the dedicated polyfill-based PHPCompatibility rulesets.
+* CI: Added a test for the ruleset.
+* Readme: Removed the installation instructions for a non-Composer based install.
 
 ### 1.0.0 - 2018-07-17