Update docs

Author: supechicken

README.md

@@ -27,6 +27,27 @@ All communication between the `sudo` server and client is done via Unix socket.
 
 ![How it works](images/how-it-works.svg)
 
+## Usage
+```text
+sudo <command to execute or sudo options>
+---
+crew-sudo [command] <options>
+crew-sudo -h|--help
+crew-sudo -V|--version
+```
+
+|Command       |Description|
+|:-------------|:----------|
+|`client`      |Run as client mode, pass all given command arguments to daemon|
+|`daemon`      |Run as daemon mode, listen incoming requests at /tmp/crew-sudo.socket|
+|`stop-daemon` |Stop currently running crew-sudo daemon|
+
+|Options       |Description|
+|:-------------|:----------|
+|`--bashrc`    |Suppress "daemon is already running" error|
+|`--foreground`|Run crew-sudo daemon in foreground|
+|`--replace`   |Replace the currently running crew-sudo daemon|
+
 ## What works currently
 - Send terminal input to command/send command output back to `crosh`
 - Handle terminal size events

component/daemon.rb

@@ -18,7 +18,7 @@ def runas_daemon(argv)
         message <<~EOT, loglevel: :error
           crew-sudo daemon (process #{File.read(PID_FILE_PATH)}) is already running.
 
-          Use `#{PROGNAME} --daemon --replace` to replace the running daemon.
+          Use `#{PROGNAME} daemon --replace` to replace the running daemon.
         EOT
       end
       exit 1

crew-sudo

@@ -26,15 +26,20 @@ when 'crew-sudo'
     warn <<~EOT
       #{File.basename($0)} multi-purpose launcher
 
-      Usage: #{PROGNAME} [mode]
+      Usage: #{PROGNAME} [command] <options>
              #{PROGNAME} -h|--help
              #{PROGNAME} -V|--version
 
       Available commands:
-        daemon       Run as daemon mode, listen incoming requests at #{SOCKET_PATH}
         client       Run as client mode, pass all given command arguments to daemon
+        daemon       Run as daemon mode, listen incoming requests at #{SOCKET_PATH}
         stop-daemon  Stop currently running crew-sudo daemon
 
+      Available options:
+        --bashrc      Suppress "daemon is already running" error
+        --foreground  Run crew-sudo daemon in foreground
+        --replace     Replace the currently running crew-sudo daemon
+
     EOT
   when '-V', '--version'
     warn "#{PROGNAME} version 1.0"