Update README.md

README.md

@@ -49,7 +49,23 @@ $ curl 127.0.0.1:5002/showtimes/20151130
 ```
 Try your best to solve it. If you need hints, you will find the solution for this in the branch `simpleservices`, which you can obtain by running `git checkout simpleservices`. Note that after checking out this branch, you will have to start both the `movies` and `showtimes` microservices and then issue the curl request. The showtimes microservice will talk to movies microservice to deliver the final result.
 
+The main change needed is simple. We just have to issue an HTTP GET request to the movies API endpoint. We do this by changing `showtime_record` as follows: 
+```python
+movies_service = "http://127.0.0.1:5001/movies/{}" #we know this is where the service is running. We replace the {} with the actual ID of the movie we want.
+
+def showtimes_record(date):
+    if date not in showtimes:
+        raise NotFound
+    print(showtimes[date])
+    result = []
+    for movie_id in showtimes[date]:
+        resp = requests.get(movies_service.format(movie_id))
+        result.append(resp.json()["title"])
+    return nice_json(result)
+```
 ## Step 3: Dockerization of microservices
+> We now have two microservices running on _localhost_ and talking to each other. If we need to move these services, it is not easy. 
+> Your next task is to wrap these microservices as a docker image and make them portable. Essentially, this involves specifying all the dependencies and running parameters explicitly in a `Dockerfile`. You can have a go at this by copying from this [tutorial](https://www.docker.com/blog/containerized-python-development-part-1/). Or, switch to the `dockerservices` branch where you will find the solution for steps 3 and 4.
 
 ## Step 4: How to make two dockerized microservices talk to each other