Have a queue for generation prompts readme guide

[RustoMCSpit]

I want to be able to line up ten different prompts and then let my computer run, then I can come back later and view all the saved recordings.

[deepbeepmeep]

this is just what the v3 of the gradio server does. You just need to separate each genres prompt with a carriage return. The lyrics will be shared across the different generations though.

[RustoMCSpit]

could you put a guide in the readme