docs(README): update development instructions

README.md

@@ -1,4 +1,7 @@
 # Docker Jolocom Interactions Demo
+This is a demo of all interactions supported by the
+[JolocomSDK](https://github.com/jolocom/jolocom-sdk). There is a React based
+frontend, and a Hapi based backend integrated with the JolocomSDK.
 
 A hosted version of this demo is available at https://interxns.jolocom.io
 
@@ -11,13 +14,25 @@ described below
 ### Service Agent (Backend)
 This requires an LTS version of Node: 10 or 12 or 14
 
+The `service_agent` needs to know its "public" facing "host:port" address to be
+able to embed it in the interaction tokens, such that the SmartWallet can find
+the agent.
+
+To successfully go through the demo while running locally, change the
+`SERVICE_HOSTPORT` environment variable that is used in the `yarn start` command
+below, to a value that the mobile phone can access, probably the LAN IP address
+of the computer that is running the `service_agent`, assuming the test
+SmartWallet is on the same LAN
+
 ```sh
 cd service_agent
 yarn install
-yarn start
+SERVICE_HOSTPORT="192.168.1.42:9000" yarn start
 ```
 
 ### React App (Frontend)
+In another terminal:
+
 ```sh
 cd frontend
 yarn install
@@ -26,7 +41,18 @@ yarn start
 Visit the frontend development server at http://localhost:3000
 and open the Web Console to see debugging output
 
-## Deployment instructions
+### Usage with the SmartWallet
+
+The SmartWallet release builds require HTTP**S** connections, and cannot use
+plain HTTP. To use this demo without SSL certificates (which is the case if
+running in development) please use a **staging** build of the SmartWallet on
+Android, available for download here:
+https://jolocom.io/wp-content/uploads/smartwallet/smartwallet-staging-1.11.1.apk
+
+## Production Deployment instructions
+This demo is not suitable for any sort of "production" deployment, besides use
+as a demo.
+
 The repo comes with a [docker-compose.yml](./docker-compose.yml) that is
 suitable for deployment accompanied by https://github.com/jolocom/docker-nginx-proxy
 which automatically adds HTTPS support by issuing SSL certificates through
@@ -40,18 +66,3 @@ The configuration for the domain is taken from environment variables in
     SERVICE_HOSTPORT: 'interxns.jolocom.io'
     VIRTUAL_HOST: 'interxns.jolocom.io'
 ```
-
-### Usage with the SmartWallet
-
-The `service_agent` needs to know its "public" facing "host:port" address to be
-able to embed it in the interaction tokens, such the the SmartWallet can find
-the agent.
-
-To successfully go through the demo, change the `SERVICE_HOSTPORT` environment
-variable inside `docker-compose.yml` to a value that the mobile phone can
-access, probably the LAN IP address of the computer running the `service_agent`,
-assuming the test SmartWallet is on the same LAN
-
-Also note that the SmartWallet release builds require HTTP**S** connections, and cannot use
-plain HTTP. To use this demo without SSL certificates please use a **staging**
-build of the SmartWallet on Android, available for download here: https://jolocom.io/wp-content/uploads/smartwallet/smartwallet-staging-1.11.1.apk