update readme

Readme.md

@@ -1,19 +1,33 @@
-#Readme
+# Readme
 
-This script uses OpenAI to convert text to speech, and then speak that speech over a virtual microphone
+This script uses OpenAI to convert text to speech, and then speak that speech over a virtual microphone.
 
-Install VB-Cable:
+## 1) Install VB-Cable:
 https://vb-audio.com/Cable/
 
+## 2) ensure the OpenAI API key is specified in the .env file
 This sets up a virtual microphone that we can use to sent text to speech audio to. Then, when you join a meeting, such as a google meeting, you can select this virtual cable to hear the audio being sent on the channel.
 
+## 3) Run the script:
+python text-to-mic.py "Text you'd like to speak"
+
+This will then ask you which device you want to send the audio to, and give you a list to choose from. 
+
+Take note of them listed, and record the device ID of your headphones, and of the "Cable Input". For now get it to output to your headphones as a test that it works.
+
+Now that you know your headphone device id, and the cable input id, you can now automatically select both with your command prompt input like this, where 8 and 5 are the respective device indexes:
+python text-to-mic.py "Text you'd like to speak" 8 5
 
 
-#Dependencies
+
+
+
+
+# Dependencies
 
 To get this script working you will need to install the following on the relevant operating system
 
-###Windows
+### Windows
 
 pip install pyaudio
 pip install python-dotenv
@@ -21,7 +35,7 @@ pip install wave
 pip install pydub
 
 
-###Mac
+### Mac
 
 brew install portaudio
 pip install python-dotenv