Fix code formatting + class docs

index.php

@@ -1,10 +1,10 @@
 <?php // @codingStandardsIgnoreFile
 
 // load dependencies
-if(is_file(__DIR__ . '/vendor/autoload.php')) {
+if (is_file(__DIR__ . '/vendor/autoload.php')) {
     // composer root package
     require_once(__DIR__ . '/vendor/autoload.php');
-} elseif(is_file(__DIR__ . '/../../../vendor/autoload.php')) {
+} elseif (is_file(__DIR__ . '/../../../vendor/autoload.php')) {
     // composer dependency package
     require_once(__DIR__ . '/../../../vendor/autoload.php');
 } else {

lib/Pico.php

@@ -133,7 +133,7 @@ class Pico
      * Meta data of the page to serve
      *
      * @see Pico::getFileMeta()
-     * @var string[]|null
+     * @var array|null
      */
     protected $meta;