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

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

flask-redis/app.py

@@ -0,0 +1,14 @@
+from flask import Flask
+from redis import Redis
+
+app = Flask(__name__)
+redis = Redis(host='redis', port=6379)
+
+@app.route('/')
+def hello():
+    redis.incr('hits')
+    counter = str(redis.get('hits'),'utf-8')
+    return "This webpage has been viewed "+counter+" time(s)"
+
+if __name__ == "__main__":
+    app.run(host="0.0.0.0", debug=True)