Add meta tags and factorize them

html/stats.php

@@ -5,15 +5,14 @@
 <!DOCTYPE HTML>
 <html>
 	<HEAD>
-		<meta charset="UTF-8">
-		<title>Statistiques</title>
-		<link rel="SHORTCUT ICON" HREF="ressources/logo.svg">
-		<style>
-		img {
-		  max-width: 100%;
-		    height: auto;
-		    }
-		</style>
+    <?php include 'includes/header.html'; ?>
+    <title>Statistiques</title>
+    <style>
+    img {
+      max-width: 100%;
+      height: auto;
+    }
+    </style>
 	</HEAD>
 
 	<BODY>