added a sitemap generator, let's see if this works

node/sitemap.js

@@ -0,0 +1,49 @@
+const express = require('express');
+const {
+    createSitemap
+} = require('sitemap');
+const fs = require("fs");
+
+let app = express();
+let sitemap = createSitemap({
+    hostname: 'https://ellpeck.de',
+    urls: [{
+            url: '/',
+            priority: 0.8
+        },
+        {
+            url: '/#projects',
+            changefreq: 'monthly'
+        },
+        {
+            url: '/#social',
+            changefreq: 'yearly'
+        },
+        {
+            url: '/#about',
+            changefreq: 'monthly'
+        },
+        {
+            url: '/#blog',
+            changefreq: 'weekly',
+            priority: 0.6
+        }
+    ]
+});
+
+fs.readFile(__dirname + "/../blog/posts.json", function (_, data) {
+    var json = JSON.parse(data);
+    for (var post of json) {
+        sitemap.add({
+            url: "/#blog-" + post["id"],
+            priority: 0.4
+        });
+    }
+});
+
+app.get('/sitemap.xml', function (_req, res) {
+    let xml = sitemap.toXML();
+    res.header('Content-Type', 'application/xml');
+    res.send(xml);
+});
+app.listen(3000);

robots.txt

@@ -0,0 +1 @@
+Sitemap: https://ellpeck.de/sitemap.xml