added id for each category to go directly to the section wanted

Views/category/view.php

@@ -1,11 +1,18 @@
 <?php
+$allCategory = array(
+    "Type de cuisson" => "type_de_cuisson",
+    "Temps de préparation" => "temps_de_preparation",
+    "Difficulté" => "difficulte",
+    "Végan" => "vegan",
+    "Sans gluten" => "sans_gluten",
+    "Sans lactose" => "sans_lactose");
 ?>
 
 <nav>
     <ul>
         <?php
         foreach ($A_view as $categoryName => $recipes) {
-            echo '<li><section>
+            echo '<li><section id="'.$allCategory[$categoryName].'">
                 <h1>'.$categoryName.'</h1>
                 <ul>';
                     foreach ($recipes as $recipe) {