Fix style of changelogs/readmes

Author: nicolas-grekas

README.md

@@ -11,13 +11,13 @@ MESSAGEBIRD_DSN=messagebird://TOKEN@default?from=FROM
 ```
 
 where:
-- `TOKEN` is your MessageBird token
-- `FROM` is your sender
+ - `TOKEN` is your MessageBird token
+ - `FROM` is your sender
 
 Resources
 ---------
 
-* [Contributing](https://symfony.com/doc/current/contributing/index.html)
-* [Report issues](https://github.com/symfony/symfony/issues) and
-  [send Pull Requests](https://github.com/symfony/symfony/pulls)
-  in the [main Symfony repository](https://github.com/symfony/symfony)
+  * [Contributing](https://symfony.com/doc/current/contributing/index.html)
+  * [Report issues](https://github.com/symfony/symfony/issues) and
+    [send Pull Requests](https://github.com/symfony/symfony/pulls)
+    in the [main Symfony repository](https://github.com/symfony/symfony)