methods first letter should be lower case

src/Db/DbHelper.php

@@ -9,7 +9,7 @@ class DbHelper
      * @param boolean $withJeunesse add 'Jeunesse' to the list
      * @return array
      */
-    public static function ListOfGenres($withJeunesse = false)
+    public static function listOfGenres($withJeunesse = false)
     {
         $sql = "SELECT DISTINCT
                     LTRIM(RTRIM(Codes.Code)) as code,
@@ -38,7 +38,7 @@ class DbHelper
     /**
      * Retrieve the list of all books currently lent to readers.
      */
-    public static function InReading()
+    public static function inReading()
     {
         $sql = "SELECT
                     NoticeNr, title, author, displayName