Nginx/Node/Redis and Flask/Redis Compose example (#222)

* Added Node, Nginx and Redis Project
* Added Flask/Redis

nginx-nodejs-redis/nginx/nginx.conf

@@ -0,0 +1,12 @@
+upstream loadbalancer {
+  server web1:5000;
+  server web2:5000;
+}
+
+server {
+  listen 80;
+  server_name localhost;
+  location / {
+    proxy_pass http://loadbalancer;
+  }
+}