修改readme

Readme.md

@@ -18,7 +18,7 @@ $ sudo apt install python3 python3-pip
 2. Clone:
 ```
 $ git clone https://github.com/bieberg0n/bjdns.git
-$ cd bjdns/bjdns2
+$ cd bjdns/
 ```
 
 3. Install requires:
@@ -30,12 +30,12 @@ $ sudo pip3 install -r requirements.txt
 ```
 $ python3 bjdns2_client.py -h
 Usage:
-  bjdns2_client.py (-s <BJDNS2_SERVER_ADDR>) (-i <BJDNS2_SERVER_IP>)
+  bjdns2_client.py (-s <BJDNS2_SERVER_ADDR>) (-i <BJDNS2_SERVER_IP>) [-d <DIRECT_DNS_SERVER>] [-l <LISTEN_IP_PORT>]
   bjdns2_client.py (-c <CONFIG_FILE>)
 
 
 Examples:
-  bjdns2_client.py -s "https://your.domain.name:your_port" -i "127.0.0.1"
+  bjdns2_client.py -s "https://your.domain.name:your_port" -i "127.0.0.1" -d "119.29.29.29" -l "127.0.0.1:53"
   bjdns2_client.py -c "config.json"
 
 Options:
@@ -87,4 +87,4 @@ curl https://your.domain.name/?dn=twitter.com
 The **whitelist.json** file is modified from the file in [breakwa11](https://github.com/breakwa11)'s [gfw_whitelist](https://github.com/breakwa11/gfw_whitelist) project. The project uses the [MIT](https://github.com/breakwa11/gfw_whitelist/blob/master/LICENSE) license.  
 
 ### License (GNU GPL3.0)  
-Copyright (c) 2017 bjong
+Copyright (c) 2017-2018 bjong