feat: adds --bail to help

src/Plugins/Help.php

@@ -103,6 +103,10 @@ final class Help implements HandlesArguments
         ]], ...$content['Configuration']];
 
         $content['Selection'] = array_merge([
+            [
+                'arg' => '--bail',
+                'desc' => 'Stop execution upon first not-passed test',
+            ],
             [
                 'arg' => '--todos',
                 'desc' => 'Output to standard output the list of todos',