[DOCS-DE] Tutorial hello-minikube (#13526)

* Tutorial hello-minikube

* Fixed remarks

content/de/examples/minikube/Dockerfile

@@ -0,0 +1,4 @@
+FROM node:6.14.2
+EXPOSE 8080
+COPY server.js .
+CMD node server.js

content/de/examples/minikube/server.js

@@ -0,0 +1,9 @@
+var http = require('http');
+
+var handleRequest = function(request, response) {
+  console.log('Received request for URL: ' + request.url);
+  response.writeHead(200);
+  response.end('Hello World!');
+};
+var www = http.createServer(handleRequest);
+www.listen(8080);