update documentation to bidirectional operation

README.md

@@ -1,4 +1,4 @@
-# pulseaudio-tcp - Redirect PulseAudio to Remote Computer
+# pulseaudio-tcp - Redirect PulseAudio to and from Remote Computer
 
 ## Requirements
 
@@ -12,7 +12,10 @@
 ### Installation on Client Playback Host
 
 * pulseaudio-tcp should be installed on a computer running PulseAudio or Pipewire with PulseAudio compatibility.
-* The computer pulseaudio-tcp is installed on ("local host") should use use a remote computer that has speakers attached ("remote host") for playback.
+* The computer pulseaudio-tcp is installed on ("local host") should use use a remote computer ("remote host") for playback.
+  - This is refered to as "outbound" audio.
+* The local host should receive audio from the remote host for recording.
+  - This is refered to as "inbound" audio.
 * The IP address and username of the remote host should be known.
 
 ### SSH to User Session on Remote Host
@@ -33,7 +36,7 @@ sudo make install
 
 ## Usage
 
-### Configuration
+### Setup Procedure
 
 As regular user on local host:
 
@@ -41,19 +44,37 @@ As regular user on local host:
 pulseadio-tcp setup
 ```
 
-### Start service
+The following questions will be asked:
+
+* IP address of remote host.
+* Name of user on remote host running PulseAudio/Pipewire.
+* Enable inbound audio.
+* Enable outbound audio.
+
+### Configuration File
+
+The setup procedure writes a configuration file `$HOME/.config/pulseaudio-tcp/config.inc.sh`:
+
+```
+remote_ip="192.168.1.166"
+remote_user="remoteuser"
+inbound=true
+outbound=true
+```
+
+### Starting the Service
 
 ```shell
 pulseadio-tcp start
 ```
 
-### Stop service
+### Stopping the Service
 
 ```shell
 pulseadio-tcp stop
 ```
 
-### Check if service is running
+### Checking if the Service is running
 
 ```shell
 pulseadio-tcp status