message: FIX: [doc] obfs plugin at server side.
diff: @@ -157,7 +157,7 @@ Server
  $ ssserver -c /path/to/shadowsocks.json
  # Pass all parameters via command line
  -$ ssserver -s "[::]:8388" -m "aes-256-gcm" -k "hello-kitty" --plugin "obfs-local" --plugin-opts "obfs=tls"
  +$ ssserver -s "[::]:8388" -m "aes-256-gcm" -k "hello-kitty" --plugin "obfs-server" --plugin-opts "obfs=tls"
  ```
  ## Supported Ciphers
  