Update README.md

README.md

@@ -7,8 +7,15 @@ Data over sound for HiveMind
 
 ## Enrolling clients
 
+pre-requisites:
+- a device with a browser, eg a phone
+- a hivemind-core device with mic and speaker, eg a mark2
+- a voice satellite device with mic and speaker, eg a raspberry pi
+- all devices need to be in audible range, they each need to be able to listen to sounds emitted by each other
+
+workflow:
 - when launching hivemind-core take note of the provided code, eg `HMPSWD:ce357a6b59f6b1f9`
-- go to https://jarbashivemind.github.io/hivemind-ggwave and emit the code from any device in audible range of your satellite
+- go to https://jarbashivemind.github.io/hivemind-ggwave and emit the code
 - the voice satellite will decode the password, generate an access key and send it back via ggwave
 - master adds a client with key + password, send an ack (containing host) via ggwave
 - satellite devices get the ack then connect to received host