add: admin, add: fully customizable information via admin side

controllers/ArticlesController.php

@@ -0,0 +1,11 @@
+<?php
+require_once __DIR__ . "/../models/articles.php";
+
+function showArticles($mysqli) {
+    return getArticles($mysqli);
+}
+
+function showThreeArticles($mysqli) {
+    return getArticles($mysqli, 3);
+}
+?>

controllers/CertificationsController.php

@@ -0,0 +1,11 @@
+<?php
+require_once __DIR__ . "/../models/certifications.php";
+
+function showCertifications($mysqli) {
+    return getCertifications($mysqli);
+}
+
+function showThreeCertifications($mysqli) {
+    return getCertifications($mysqli, 3);
+}
+?>

controllers/SettingsController.php

@@ -0,0 +1,7 @@
+<?php
+require_once __DIR__ . "/../models/settings.php";
+
+function showSettings($mysqli) {
+    return getSettings($mysqli);
+}
+?>