Update README.md

README.md

@@ -39,11 +39,11 @@ When a text is given after the date, this text will be picked up for the PHPStan
 - the comment might be mixed with `:` or `-` characters
 - multi line `/* */` and `/** */` comments are supported
 
-Out of the box comments can expire by different constraints:
+**Out of the box** comments can expire by different constraints:
 - by date with format of `YYYY-MM-DD` matched against the [reference-time](https://github.com/staabm/phpstan-todo-by#reference-time)
 - by a full github issue url
 
-There are more builtin constraints, but these require additional configuration:
+There are more builtin constraints, but these **require additional configuration**:
 - by a semantic version constraint matched against the projects [reference-version](https://github.com/staabm/phpstan-todo-by#reference-version)
 - by a semantic version constraint matched against a Composer dependency (via `composer.lock` or [`virtualPackages`](https://github.com/staabm/phpstan-todo-by#virtual-packages) config)
 - by ticket reference, matched against the status of a ticket (e.g. in github.com or JIRA)