Update readme.

README.md

@@ -1,26 +1,10 @@
-# More extra for experts
+# All done.
 
-Our existing subscription only triggers if someone else uses the `importPerson`
-mutation to trigger the subscription event - what if we want to let clients know
-whenever a row is added to our `people` table? Maybe it's added by another
-service, or something.
+I hope you've enjoyed our little trip around GraphQL.
 
-In this branch we're using Postgres triggers and stored procedures to send
-notifications whenever a row is added to the `people` table and we're using
-`Postgrex.Notifications` to subscribe to them.  A substantian portion of the
-code for this example comes from [this hackernoon post](https://hackernoon.com/get-notified-of-user-signups-and-plan-changes-automatically-using-postgres-phoenix-pubsub-e67d061b04bc).
+All code for this talk is available at [gitlab.com/jimsy/graphql-lightning-talk](https://gitlab.com/jimsy/graphql-lightning-talk).
 
-Things to look at:
+I'm `@jamesotron` on the [AU/NZ Elixir
+Slack](http://aunz-elixir.herokuapp.com/). Feel free to ask me questions there.
 
-  * `priv/repo/migrations/20180408032823_broadcast_people_table_changes.exs`
-  * `lib/faces/gallery/event_listener.ex`
-
-[Demo](http://localhost:4000)
-
-Let's try manually inserting a row (via `psql faces_dev`):
-```sql
-INSERT INTO "people" ("username", "name", "location", "avatar_url", "inserted_at", "updated_at")
-VALUES ('pupper', 'pupper', 'the bath', 'https://media.giphy.com/media/3o6Zt9ved5rCuidNlK/giphy.gif', NOW(), NOW());
-```
-
-Next, move on to `step-7`.
+## Any questions?